1 matching record(s)
file U (Stack)Cittert, P. H. van
"Proportionaalpassers"
offprint from Ned. T. Natuurk., vol. 13, January 1947. 2 copies (the duplicate copy is a photocopy). Presented by the author
[1947- ]
1947
1 matching record(s)
file U (Stack)Cittert, P. H. van
"Proportionaalpassers"
offprint from Ned. T. Natuurk., vol. 13, January 1947. 2 copies (the duplicate copy is a photocopy). Presented by the author
[1947- ]
1947