_:b663967085 . _:b663967085 . _:b663967085 . _:b663967085 "Structural homology that involves structures with the same or similar relative positions." . _:b663967085 . _:b663967085 . _:b663967085 . _:b663967085 . _:b663967085 . _:b663967085 "ISBN:0123195837" .