共 54 条
[1]
Ashwill M., 1983, OREGON GEOLOGY, V45, P107
[2]
BAAS P, 1969, Botanical Journal of the Linnean Society, V62, P413, DOI 10.1111/j.1095-8339.1969.tb01975.x
[3]
Baas P., 1976, LEIDEN BOT SER, V3, P157
[5]
BONES TJ, 1979, OMSI OCCAS PAP NAT S, V1, P1
[7]
BROWN R. W., 1936, US GEOL SURV PROF PA, V186, P163
[8]
Brown R.W., 1934, 185C US DEP INT GEOL, P45
[9]
Brown RW., 1962, US GEOL SURV PROF PA, V375, P1
[10]
BUZEK C, 1967, MONATSBER DTSCH AKAD, V9, P203