Alem,Yibeltal Fantahun2018-11-222018-11-222015b3788140http://hdl.handle.net/1885/150051xxi, 143 leavesapplication/pdfen-AUAuthor retains copyrightSparse recovery on sphere and modelling 3d spatial correlation201510.25911/5d5142156c3222018-11-20