共 5 条
[1]
DRAY W, 1957, LAWS EXPLANTION HIST
[2]
Einstein A., 1950, OUT MY LATER YEARS
[3]
HEMPEL CG, 1965, ASPECTS SCIENTIFIC E
[4]
Hempel CG., 1948, PHILOS SCI, V15, P135, DOI [DOI 10.1086/286983, 10.1086/286983]
[5]
NAGEL E, 1961, STRUCTURE SCIENCE PR