Z. Yang, S. Zhou, J. Zu, D. Inman, High-Performance Piezoelectric Energy Harvesters and Their Applications, Joule, (2018).
 A. Erturk, D.J. Inman, A distributed parameter electromechanical model for cantilevered piezoelectric energy harvesters, Journal of vibration and acoustics, 130(4) (2008) 041002.
 Y. Cha, Energy harvesting using flexible piezoelectric materials from human walking motion: Theoretical analysis, Journal of Intelligent Material Systems and Structures, 28(20) (2017) 3006-3015.
 M. Karimi, R. Tikani, S. Ziaei-Rad, Piezoelectric energy harvesting from bridge vibrations under moving consecutive masses, Modares Mechanical Engineering, 16(6) (2016) 108-118.
 S. Suhag, D. Chhabra, DESIGN OF A CLOSED CHANNEL FLUID FLOW SYSTEM FOR PIEZOELECTRIC ENERGY HARVESTING, (2018).
 S. Orrego, K. Shoele, A. Ruas, K. Doran, B. Caggiano, R. Mittal, S.H. Kang, Harvesting ambient wind energy with an inverted piezoelectric flag, Applied Energy, 194 (2017) 212-222.
 Z.L. Wang, J. Song, Piezoelectric nanogenerators based on zinc oxide nanowire arrays, Science, 312(5771) (2006) 242-246.
 S. Priya, H.-C. Song, Y. Zhou, R. Varghese, A. Chopra, S.-G. Kim, I. Kanno, L. Wu, D.S. Ha, J. Ryu, A review on piezoelectric energy harvesting: materials, methods, and circuits, Energy Harvesting and Systems, 4(1) (2017) 3-39.
 O. Abdeljaber, O. Avci, D.J. Inman, Active vibration control of flexible cantilever plates using piezoelectric materials and artificial neural networks, Journal of sound and vibration, 363 (2016) 33-53.
 H. Salmani, G. Rahimi, S. Hosseini Kordkheili, An exact analytical solution to exponentially tapered piezoelectric energy harvester, Shock and Vibration, 2015 (2015).
 B. Andò, S. Baglio, F. Maiorca, C. Trigona, Analysis of two dimensional, wide-band, bistable vibration energy harvester, Sensors and Actuators A: Physical, 202 (2013) 176-182.
 D. Borthakur, K. Guha, S. Chander, S. Baishya, Optimization of Piezoelectric Energy Harvesting Structure by Segmenting the Piezoelectric Layer (s).
 T. Kumar, R. Kumar, V.S. Chauhan, Design and finite element analysis of varying width piezoelectric cantilever beam to harvest energy, in: Energy, Power and Environment: Towards Sustainable Growth (ICEPE), 2015 International Conference on, IEEE, 2015, pp. 1-6.
 R. Hosseini, M.J.M.T. Hamedi, An investigation into resonant frequency of trapezoidal V-shaped cantilever piezoelectric energy harvester, 22(5) (2016) 1127- 1134.
 R. Hosseini, M. Hamedi, An investigation into resonant frequency of triangular V-shaped cantilever piezoelectric vibration energy harvester, (2016).
 R. Hosseini, M.J.J.o.M. Hamedi, Microengineering, Improvements in energy harvesting capabilities by using different shapes of piezoelectric bimorphs, 25(12) (2015) 125008.
 R. Hosseini, M.J.I.J.o.A.D. Hamedi, M. Technology, Study of the resonant frequency of unimorph triangular V-shaped piezoelectric cantilever energy harvester, 8(4) (2015).
 M.A.M. Hatta, M.W.A. Rashid, U.A.-A.H.Azlan, K.S. Leong, N.A. Azmi, Finite element method simulation of MEMS piezoelectric energy harvester using lead- free material, in: Computer and Communication Engineering (ICCCE), 2016 International Conference on, IEEE, 2016, pp. 511-515.
 C.H. Wong, Z. Dahari, M.H. Jumali, K. Mohamed, J.J.J.J.o.E.M. Mohamed, Simulation and Fabrication of Wagon-Wheel-Shaped Piezoelectric Transducer for Raindrop Energy Harvesting Application, 46(3) (2017) 1587-1597.
 A. Batra, A. Alomari, M. Aggarwal, A. Bandyopadhyay, Energy harvesting under excitation of clamped-clamped beam, in: Smart Materials and Nondestructive Evaluation for Energy Systems 2016, International Society for Optics and Photonics, 2016, pp. 980612.
 Y. Amini, P. Fatehi, M. Heshmati, H.J.C.S. Parandvar, Time domain and frequency domain analysis of functionally graded piezoelectric harvesters subjected to random vibration: Finite element modeling, 136 (2016) 384-393.
 V. Cleante, M. Brennan, G. Gatti, D.J.M.S. Thompson, S. Processing, On the target frequency for harvesting energy from track vibrations due to passing trains, 114 (2019) 212-223.
 Y.J.J.o.I.M.S. Cha, Structures, Energy harvesting using flexible piezoelectric materials from human walking motion: Theoretical analysis, 28(20) (2017) 3006-3015.
 J. Kim, S. Mun, H.-U. Ko, L. Zhai, S.-K. Min, H.C. Kim, A Comprehensive Review of Electroactive Paper Actuators, in: Ionic Polymer Metal Composites (IPMCs), 2015, pp. 398-422.
 M.A.H. Khondoker, S.C. Mun, J. Kim, Particle based conductive silver ink customized for ink jet printing on cellulose electro-active paper, in: Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2013, International Society for Optics and Photonics, 2013, pp. 86910Q.
 A. John, S.K. Mahadeva, J. Kim, The preparation, characterization and actuation behavior of polyaniline and cellulose blended electro-active paper, Smart Materials and Structures, 19(4) (2010) 045011.
 R. HOSSEINI, M.A. EBRAHIMI, M. NOURI, An Experimental Investigation into Width Reduction Effect on the Efficiency of Piezopolymer Vibration Energy Harvester, (2017).
 L. Zhai, B.-W. Kang, J.-H. Kim, J. Kim, Z. Abas, H.S. Kim, Electrode effect on the cellulose piezo- paper energy harvester, in: Electroactive Polymer Actuators and Devices (EAPAD) 2013, International Society for Optics and Photonics, 2013, pp. 86870R.
 G.-Y. Yun, K.-J. Yun, J.-H. Kim, J. Kim, Electrical and mechanical characterization of nanoscale-layered cellulose-based electro-active paper, Journal of nanoscience and nanotechnology, 11(1) (2011) 570-573.
 Z. Cai, J. Kim, Dry and durable electro‐active paper actuator based on natural biodegradable polymer, Journal of applied polymer science, 115(4) (2010) 2044-2049.
 R. Hosseini, M. Hamedi, J. Im, J. Kim, J. Dayou, Analytical and experimental investigation of partially covered piezoelectric cantilever energy harvester, International Journal of Precision Engineering and Manufacturing, 18(3) (2017) 415-424.
 Z. Abas, H.S. Kim, L. Zhai, J. Kim, Experimental study of vibrational energy harvesting using Electro- Active paper, International Journal of Precision Engineering and Manufacturing, 16(6) (2015) 1187- 1193.
 R. Hosseini, M. Hamedi, A. Ebrahimi Mamaghani, H.C. Kim, J. Kim, J. Dayou, Parameter identification of partially covered piezoelectric cantilever power scavenger based on the coupled distributed parameter solution, International Journal of Smart and Nano Materials, 8(2-3) (2017) 110-124.