Ronald L. Graham. Photo by Konrad Jacobs.
Aanvullende informatie
Afbeelding geĆ¼pload door omargosh op Dec 14, 2012.
Auteursrecht: Photo licensed at http://owpdb.mf... by Mathematisches Forschungsinstitut Oberwolfach gGmbH (MFO) under CC-BY-SA 2.0 Germany as noted at http://owpdb.mf...