@article{RHM_2012__18_1_37_0,
     author = {Rajeswara Sarma, Sreeramula},
     title = {The {\protect\emph{Kaṭapay\={a}di}} system of numerical notation and its spread outside {Kerala}},
     journal = {Revue d'histoire des math\'ematiques},
     pages = {37--66},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {18},
     number = {1},
     year = {2012},
     mrnumber = {2987370},
     zbl = {1264.01008},
     language = {en},
     url = {http://www.numdam.org/item/RHM_2012__18_1_37_0/}
}