Dutch chess player Albert Blees during Dutch National Chess Championship 1989
Rob Bogaerts (ANEFO)
<a rel="nofollow" class="external text" href="http://proxy.handle.net/10648/ad722a58-d0b4-102d-bcf8-003048976d84">GaHetNa (Nationaal Archief NL)</a> 934-4383