Batra, A. K. Design, Fabrication, and Testing of Piezoelectric Energy Harvesters. SPIE Digital Library.
Chicago-viite (17. p.)Batra, Ashok K. Design, Fabrication, and Testing of Piezoelectric Energy Harvesters. SPIE Digital Library.
MLA-viite (9. p.)Batra, Ashok K. Design, Fabrication, and Testing of Piezoelectric Energy Harvesters. SPIE Digital Library.
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