TY - RPRT TI - Moon-Mercury: Large impact structures, isostasy and average crustal viscosity AU - G. G. Schaber AU - J. M. Boyce AU - N.J. Trask PY - 1977 DO - 10.1016/0031-9201(77)90031-0 UR - https://pubs.usgs.gov/publication/70009804 ID - 70009804 ER -