@techreport{DeuflhardFreundWalter1990, author = {Peter Deuflhard and R. Freund and Artur Walter}, title = {Fast Secant Methods for the Iterative Solution of Large Nonsymmetric Linear Systems.}, institution = {ZIB}, address = {Takustr. 7, 14195 Berlin}, number = {SC-90-05}, language = {eng}, year = {1990} }