共 6 条
- [1] COLE JR, 1973, SOCIAL STRATIFICATIO, pCH2
- [2] EISENBEIS RA, 1972, DISCRIMINANT ANALYSI
- [3] COMMUNICATION MODES OF GEOPHYSICS - CASE OF IONOSPHERIC PHYSICS [J]. TRANSACTIONS-AMERICAN GEOPHYSICAL UNION, 1973, 54 (10): : 900 - 908
- [4] RATCLIFFE JA, 1973, J ATMOS TERR PHYS, V35, P833
- [6] SCIENCE CITATION IND