1
by Bullinger, Hans-Jörg, Heisel, U., Pritschow, Günter, Westkämper, Engelbert
Published 1997
Springer Berlin Heidelberg

2
by Bullinger, Hans-Jörg, Heisel, Uwe, Pritschow, Günter, Westkämper, Engelbert
Published 2000
Springer Berlin Heidelberg