@book{22449, author = {El-Sharkawi, Mohamed A.}, title = {Electric energy :}, publisher = {Taylor & Francis,}, year = {2012.}, series = {Power electronics and applications series}, address = {Boca Raton, FL :}, edition = {3rd ed.}, url = {https://uowd.box.com/s/kbsdyd76sdsk3rrwfgox3bfp3s5f24aj} }