@article{EstT01, author = {D. {Est{\'e}vez Schwarz} and C. Tischendorf}, title = {Mathematical Problems in Circuit Simulation}, journal = {Math. Comput. Model. Dyn. Syst.}, year = {2001}, volume = {7}, pages = {215--223}, number = {2}, doi = {10.1076/mcmd.7.2.215.3647} }