[u' @inproceedings{sainz_software_2003, address = {CALELLA DE LA COSTA (BARCELONA)}, title = {A software for varactors simulation based on finite difference approximation}, author = {Sainz, Nekane and Gutierrez, I. and Legarda, J. and Garcia, J. and de No, Joaquin}, month = feb, year = {2003} }']