000 00390nam a2200121 4500
245 _aUniversal extensions and one dimensional crystalline cohomology
_cBarry Mazur and William Messing
100 _aMazur, Barry
710 _aMessing, William
260 _aBerlin
_bSpringer-Verlag
_c1974
300 _avi,134p.; 24cm.-
490 _aLecture noter in mathematics; no.370
082 _a514.23
_bMAZ
999 _c27577
_d27577