Grünell, M. (1999). Proposed reorganisation of Central Bureau of Statistics with-drawn for amendment. EIROnline: European industrial relations observatory on-line, nl9901136n.
Grünell, M. (1999). More part-timers will receive tax concession. EIROnline: European industrial relations observatory on-line, nl9901149n(juni).
van het Kaar, R. H. (1999). Trade unions file for bankruptcy of company. EIROnline: European industrial relations observatory on-line, nl9906147n(juni).
Grünell, M. (1999). Impact of Flexibility and Security Act on temporary work sector. EIROnline: European industrial relations observatory on-line, nl9901146n(juni).
van het Kaar, R. H. (1999). Employment termination requests decline. EIROnline: European industrial relations observatory on-line, nl9907152n(juli).
Grünell, M. (1999). Proposed four-day working week for primary education under fire. EIROnline: European industrial relations observatory on-line, nl9901153n(juli).
van het Kaar, R. H. (1999). Social partners react critically to cabinet's tax proposals. EIROnline: European industrial relations observatory on-line, nl9909162n(september).
Grünell, M. (1999). Lower House intervenes to seek paid care leave. EIROnline: European industrial relations observatory on-line, nl9901154n(juli).
Grünell, M. (1999). Hundreds of jobs hang on the balance at NAM. EIROnline: European industrial relations observatory on-line, nl9901164n(september).
van den Heuvel, E. P. J., & van der Hooft, F. (1999). Pulsar Timing, General Relativity and the Internal Structure of Neutron Stars: Proceedings of the Colloquium : Amsterdam : 24.-27. September 1996 . (Verhandelingen, Afd. Natuurkunde, Eerste reeks; No. 50). KNAW.