Multiple Parallel Local Searches in Global Optimization. - Hermanus P. J. Bolton; Jaco F. Schutte; Albert A. Groenwold (PVM/MPI, 2000)

Global Optimization using Dynamic Search Trajectories. - Albert A. Groenwold; Jan A. Snyman (J. Glob. Optim., 2002)

Recent Developments of the Particle Swarm Optimization Algorithm. - Schalk Kok; Daniel N. Wilke; Albert A. Groenwold (Computational Intelligence, 2005)

A Study of Global Optimization Using Particle Swarms. - Jaco F. Schutte; Albert A. Groenwold (J. Glob. Optim., 2005)

A Method of Proximity Matrix Based Fuzzy Clustering. - Roelof K. Brouwer; Albert A. Groenwold (FSKD (2), 2007)

Reference frame and scale invariant real-parameter genetic and differential evolution algorithms. - Daniel N. Wilke; Schalk Kok; Albert A. Groenwold (GECCO, 2007)

Fuzzy relational clustering based on comparing two proximity matrices with utilization of particle swarm optimization. - Roelof K. Brouwer; Albert A. Groenwold (Soft Comput., 2009)

Modified fuzzy c-means for ordinal valued attributes with particle swarm for optimization. - Roelof K. Brouwer; Albert A. Groenwold (Fuzzy Sets Syst., 2010)

On rotationally invariant continuous-parameter genetic algorithms. - Marthinus N. Ras; Daniel N. Wilke; Albert A. Groenwold; Schalk Kok (Adv. Eng. Softw., 2014)

On the rotational variance of the differential evolution algorithm. - Marthinus N. Ras; Daniel N. Wilke; Albert A. Groenwold; Schalk Kok (Adv. Eng. Softw., 2019)