- Numerical Treatment of Eigenvalue Problems: Workshop in Oberwafach, February 25-March 3, 1990/Numerische Behandlung Von Eigenwertaufgaben: Tagung by W. Velte, Lothar Collatz, et all May, 1991
- Optimization Problems (Applied Mathematical Sciences Ser. ; Vol. 17)) by Lothar Collatz, July, 1975
- Numerical Treatment of Eigenvalue Problems (International Series Numerical Mathematics, Vol. 83) by Lothar Collatz, September, 1987
- Differential-Difference Equations: Applications and Numerical Problems by L. Collatz, May, 1983
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