Green, C.H. (1938). "Velocity determination by means of reflection profiles". Geophysics. 3 (4). Society of Exploration Geophysicists: 295–305. Bibcode:1938Geop....3..295G. doi:10.1190/1.1439508.
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Green, C.H. (1938). "Velocity determination by means of reflection profiles". Geophysics. 3 (4). Society of Exploration Geophysicists: 295–305. Bibcode:1938Geop....3..295G. doi:10.1190/1.1439508.