Hicks, Noel J..
Notes on Differential Geometry / - 1st ed / - New Jersey : D. Van Nostrand Company Inc.. - p.183 :
Mathematics
B6:3 / K5;1
Notes on Differential Geometry / - 1st ed / - New Jersey : D. Van Nostrand Company Inc.. - p.183 :
Mathematics
B6:3 / K5;1