Hendrik Willem Lenstra Jr. is a Dutch mathematician.
Hendrik W. Lenstra Jr.
Zaandam is a city in the province of North Holland, Netherlands. It is the main city of the municipality of Zaanstad and received city rights in 1811. It is located on the river Zaan, just north of Amsterdam.
Windmills at the Zaanse Schans north of Zaandam in 2007
Zaandam City Hall
De Oostzijderkerk
Zaandam, sluice