@article{ASNSP_1972_3_26_4_889_0,
     author = {Garai, Ranjan Kumar},
     title = {On recurrent spaces of first order},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     pages = {889--909},
     publisher = {Scuola normale superiore},
     volume = {Ser. 3, 26},
     number = {4},
     year = {1972},
     mrnumber = {362103},
     zbl = {0246.53044},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ASNSP_1972_3_26_4_889_0/}
}