Willem () is a Dutch given name. The name is Germanic, and can be seen as the Dutch equivalent of the name William in English, Guillaume in French, and Wilhelm in German.

AGE-RELATED DECLINE IN PHYSICAL ACTIVITY 1106
Climate change 2007: the physical science basis
Model Checking Programs
Critical Point Theory and Hamiltonian Systems
Using the job demands‐resources model to predict burnout and performance
Carbon and Other Biogeochemical Cycles 6
A Shuffled Complex Evolution Metropolis algorithm for optimization and uncertainty assessment of hydrologic model parameters
Heartbeat perception in panic disorder: a reanalysis
Modification of the Clinical Global Impressions (CGI) scale for use in bipolar illness (BP): the CGI-BP
Language production: Grammatical encoding.