00971nam a2200301 i 450099100090577970753620020507103033.0951129s1969 uk ||| | eng b10146283-39ule_instLE00638919ExLDip.to Fisicaita53.1.5253.1.562530.11QA689.P4713Petrov, A.Z.461750Einstein spaces /A.Z. Petrov ; translated by R.F. KelleherOxford :Pergamon,1969xiii, 411 p. ;23 cm.Bibliography : p. 385-406.Generalized spacesKelleher, R.F..b1014628321-09-0627-06-02991000905779707536LE006 53.1.5 PET12006000042895le006-E0.00-l- 02020.i1017396127-06-02Einstein spaces186250UNISALENTOle00601-01-95ma -enguk 01