Niven, Ivan. “INTRODUCTION.” Dedekind Sums, by HANS RADEMACHER and EMIL GROSSWALD, 1st ed., vol. 16, Mathematical Association of America, 1972, pp. vii-viii, www.jstor.org/stable/10.4169/j.ctt5hh823.2. Accessed 15 June 2021.
Niven, I. (1972). INTRODUCTION. In RADEMACHER H. & GROSSWALD E. (Authors), Dedekind Sums (pp. Vii-Viii). Mathematical Association of America. Retrieved June 15, 2021, from http://www.jstor.org/stable/10.4169/j.ctt5hh823.2
Niven, Ivan. "INTRODUCTION." In Dedekind Sums, by RADEMACHER HANS and GROSSWALD EMIL, Vii-iii. Mathematical Association of America, 1972. Accessed June 15, 2021. http://www.jstor.org/stable/10.4169/j.ctt5hh823.2.
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