@article{TUW-107320, author = {Markowich, Peter A. and Ringhofer, Ch. and Selberherr, Siegfried}, title = {{A} {S}ingular {P}erturbation {A}pproach for the {A}nalysis of the {F}undamental {S}emiconductor {D}evices}, journal = {{M}{R}{C} {T}echnical {S}ummary {R}eport}, year = {1983}, volume = {2482}, pages = {1--50}, url = {http://www.iue.tuwien.ac.at/pdf/ib_1983/JB1983_Markowich_3.pdf} }