01479oam 2200421 450 991071664890332120210805124914.0(CKB)5470000002523677(OCoLC)1260163792(OCoLC)995470000002523677(EXLCZ)99547000000252367720210713j197504 ua 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierThe effect of a planetary surface penetrator on the soil column surrounding the impacting body /Maxwell B. Blanchard and Harry D. ShadeWashington, D.C. :National Aeronautics and Space Administration,April, 1975.1 online resource (approximately 17 pages) illustrationsNASA/TM ;X 62428"April, 1975."Includes bibliographical references (page 4).Planetary surfacesnasatLunar explorationnasatPlanetary surfaces.Lunar exploration.Blanchard Maxwell B.1401862Shade Harry D.United States.National Aeronautics and Space Administration,GPOGPOOCLCOGPOBOOK9910716648903321The effect of a planetary surface penetrator on the soil column surrounding the impacting body3471169UNINA