00366nam a22001217a 4500 9781326292539 515.63 BER Bernacchi, Giancarlo 110985 Tensors made Easy : an informal introduction to math of general relativity / Bernacchi, Giancarlo Italia, 2017. 225p. ; Paperback ddc BK 594003 594003 0 0 ddc 0 0 SMME SMME AL 2023-03-21 515.63 BER SMME-4294 2023-03-21 2023-03-21 BK