- 2021-10-17,
retrieved 2019-12-12 Kumagai, Naoichi; Sasajima, Sadao; Ito,
Hidebumi (15
February 1978). "Long-term
Creep of Rocks:
Results with
Large Specimens...
-
traps for
petroleum and
natural gas. Kumagai, Naoichi;
Sadao Sasajima;
Hidebumi Ito (15
February 1978). "Long-term
Creep of Rocks:
Results with
Large Specimens...
- on 2017-08-31.
Retrieved 2017-08-27. Kumagai, Naoichi;
Sadao Sasajima;
Hidebumi Ito (1978). "Long-term
Creep of Rocks:
Results with
Large Specimens Obtained...
- 1503741112. PMC 4653154. PMID 26504208. Kumagai, Naoichi; Sasajima, Sadao; Ito,
Hidebumi (15
February 1978). "Long-term
Creep of Rocks:
Results with
Large Specimens...
- List of
megaliths Rock-cut
architecture Kumagai, Naoichi;
Sadao Sasajima;
Hidebumi Ito (15
February 1978), "Long-term
Creep of Rocks:
Results with
Large Specimens...
-
rejected as
being totally fallacious. Kumagai, Naoichi; Sasajima, Sadao; Ito,
Hidebumi (February 15, 1978). "Long-term
Creep of Rocks:
Results with
Large Specimens...
