@article{RSMUP_1980__62__17_0,
     author = {Zampieri, Gaetano},
     title = {$\mu $-minkowskianity of the {Schwarzschild} universe},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {17--21},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {62},
     year = {1980},
     zbl = {0442.53063},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1980__62__17_0/}
}