Ohguchi T., Tiba T., 1987: Neogene volcanism in the northern Honshu, Japan. Part 1. Historical change of volcanic fields. 11 pp. (in Japanese). Memoirs of the National Science Museum 20: 15-25 pp.
50
2
GLG 90
Ohguchi T., Tiba T., 1987: Neogene volcanism in the northern Honshu, Japan. Part 2. Mode of occurrences of volcanic rocks along the north coast of the Tsugaru Peninsula. 9 pp. (in Japanese). Memoirs of the National Science Museum 20: 27-35.
50
2
AMS 15047
Opravil E., Skácel J., 1966: Subrecentní travertin od Ostravice v Moravskoslezských Beskydech. [Das subrezente Travertinvorkommen von Ostravice (Mährisch-schlesische Beskiden).] 4 pp. (in Czech). Acta Musei Silesiae 15A: 47-50.
50
2
GLG 95
Örkényi-Bondor L., 1974: The plagioclase crystals of the andesite agglomerate from Csattogó Hill in Börzsöny Mountains (Hungary). 18 pp. Ann. Hist.-nat. Mus. Nat. Hung. 66: 5-22.
50
2
ESC 16267
Osozawa S., Su Z.-H., Oba Y., Yagi T., Watanabe Y., Wakabayashi J., 2013: Vicariant speciation due to 1.55 Ma isolation of the Ryukyu islands, Japan, based on geological and GenBank data. 11 pp. Entomological Science 16(3): 267-277.