CURRENTLY SOLD OUT

Articles on Effects of Gravitation, Including: Twin Quasar, Einstein Cross, Qso B1359+154, Cloverleaf Quasar, Multiply Imaged Quasar, Ogle-2005-Blg-390lb, Ogle-2005-Blg-169lb, Ogle-2006-Blg-109lc, Ogle-2006-Blg-109lb, Ogle-2005-Blg-071lb by Hephaestus Books (Paperback / softback, 2011)