Design and implementation of optimization software - International Summer School Organized by the Working Committee on Algorithms of the Mathematical Programming Society Sponsored by the Scientific Affairs Division of the North Atlantic Treaty Organization. - Freerk A. Lootsma; Harvey J. Greenberg (Math. Program., 1977)

Performance evaluation of nonlinear optimization methods via pairwise comparison and fuzzy numbers. - Freerk A. Lootsma (Math. Program., 1985)

State-of-the-art in parallel nonlinear optimization. - Freerk A. Lootsma; K. M. Ragsdell (Parallel Comput., 1988)

Comment on 'Tournaments, Transitivity, and Pairwise Comparison Matrices' by Saul I Gass. - Freerk A. Lootsma (J. Oper. Res. Soc., 1998)

Assessing the quality of negotiated proposals using the REMBRANDT system. - R. C. Van den Honert; Freerk A. Lootsma (Eur. J. Oper. Res., 2000)

Generalized golden sections, repeated bisections and aesthetic pleasure. - Stan Lipovetsky; Freerk A. Lootsma (Eur. J. Oper. Res., 2000)

Optimization and Decision Support Systems. - Freerk A. Lootsma (Encyclopedia of Optimization, 2009)