Bott, Raoul, 1923-2005, author
Springer-Verlag , 1982
Buku Teks
Roman, Paul, author
Pergamon Press, 1975
Buku Teks
Milewski, Emil G., author
Research and Education Association, 1994
Buku Teks
edited by Gunter Asser, Jurgen Flachsmeyer, Willi Rinow
Web Deutscher der Wissenschaften, 1972
Buku Teks
Morgan, John W., 1946, author
Springer-Verlag, 1993
Buku Teks