M. S. Grutman
- Illogical instructions. Dans: Soil Mechanics and Foundation Engineering, v. 1, n. 2 (mars 1964). (1964):
- Driven hollow pile with an expanding point. Dans: Soil Mechanics and Foundation Engineering, v. 4, n. 3 (mai 1967). (1967):
- Test pile device. Dans: Soil Mechanics and Foundation Engineering, v. 5, n. 4 (juillet 1968). (1968):