00420nam a22001337a 4500003000400000005001700004008004100021040001800062100003200080245010200112260003000214300001500244500002700259LDD20260610053335.0260610b        |||||||| |||| 00| 0 eng d  cIGNOU Library  aChatterjee, SourisheAuthor  aDetection of impact craters in digital planetary images and topographic data/cSourish Chatterjee  aNew Delhi;bIGNOU,c2023.  axvii, 97p.  aPhd. Thesis in Geology