A simple solution for the M/D/c waiting time distribution. - Geert Jan Franx (Oper. Res. Lett., 2001)

Approximating multi-skill blocking systems by HyperExponential Decomposition. - Geert Jan Franx; Ger Koole; Auke Pot (Perform. Evaluation, 2006)

Scheduling aircraft landings using airlines' preferences. - M. J. Soomer; Geert Jan Franx (Eur. J. Oper. Res., 2008)