Piet Hartman
Piet Hartman (11 April 1922 – 26 March 2021) was a Dutch crystallographer, who worked as professor at Leiden University and Utrecht University between 1973 and 1987.
Piet Hartman (11 April 1922 – 26 March 2021) was a Dutch crystallographer, who worked as professor at Leiden University and Utrecht University between 1973 and 1987.