Mariano López-García Luis García de Vicuña Miguel Castilla Pedro Gayà Oscar López Current distribution control design for paralleled DC/DC converters using sliding-mode control. 419-428 2004 51 IEEE Trans. Ind. Electron. 2 https://doi.org/10.1109/TIE.2004.825273 db/journals/tie/tie51.html#LopezVCGL04