1

Asymptotic and principal directions at a planar point of a surface

Year:
1935
Language:
english
File:
PDF, 1.13 MB
english, 1935
2

curvature through an umbilic

Year:
1936
Language:
english
File:
PDF, 695 KB
english, 1936
3

US Army reverse osmosis membrane research programs

Year:
1994
Language:
english
File:
PDF, 1.02 MB
english, 1994