1. Ekhad, S.B., Zeilberger, D.: A WZ proof of Ramanujans formula for $$\pi $$ π . In: Rassias, M. (ed.) Geometry, Analysis, and Mechanics, pp. 107–108. Singapore, World Scientific (1994)
2. Gosper, R.W.: Decision procedure for indefinite hypergeometric summation. Proc. Natl. Acad. Sci. USA 75, 40–42 (1978)
3. Granville, A.: Arithmetic properties of binomial coefficients. I. Binomial coefficients modulo prime powers, Organic mathematics (Burnaby, BC, 1995), CMS Conference Proceedings, vol. 20, pp. 253–276. American Mathematical Society, Providence, 1997
4. Guillera, J., Zudilin, W.: Divergent. Ramanujan-type supercongruences. Proc. Am. Math. Soc. 140, 765–777 (2012)
5. Long, L.: Hypergeometric evaluation identities and supercongruences. Pac. J. Math. 249, 405–418 (2011)