- Object-Oriented Nonlinear Finite Element Programming: A Primer,
S. Commend and T. Zimmermann
Paper 7.7 from CCP: 68, ISBN 0-948749-70-9 (2000)
- Object-Oriented Finite Element Programming: Beyond Fast Prototyping,
D. Eyheramendy and T. Zimmermann
Paper 3.3 from CCP: 27, ISBN 0-948749-29-6 (1994)