no. 3
The p-adic gamma function and the congruences of Atkin and Swinnerton-Dyer
Groupe d'étude d'analyse ultramétrique, Tome 9 (1981-1982) no. 3, Exposé no. J17, 6 p. 
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     author = {Van Hamme, Lucien},
     title = {The $p$-adic gamma function and the congruences of {Atkin} and {Swinnerton-Dyer}},
     journal = {Groupe d'\'etude d'analyse ultram\'etrique},
     note = {talk:J17},
     pages = {J1--J6},
     year = {1981-1982},
     publisher = {Secr\'etariat math\'ematique},
     volume = {9},
     number = {3},
     zbl = {0512.12014},
     language = {en},
     url = {https://www.numdam.org/item/GAU_1981-1982__9_3_A18_0/}
}
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Van Hamme, Lucien. The $p$-adic gamma function and the congruences of Atkin and Swinnerton-Dyer. Groupe d'étude d'analyse ultramétrique, Tome 9 (1981-1982) no. 3, Exposé no. J17, 6 p.. https://www.numdam.org/item/GAU_1981-1982__9_3_A18_0/

[1] Atkin (A.) and Swinnerton-Dyer (H.). - Modular forms on noncongruence subgroups, "Combinatorics", p. 1-25. - Providence, American mathematical Society, 1979 (Proceedings of Symposia in pure Mathematics, 19). | Zbl | MR

[2] Gauss (C.F.). - Disquisitiones arithmeticae. - New Haven, London, Yale university Press, 1966. | Zbl | MR

[3] Gross (B.) and Koblitz (N.). - Gauss sums and the p-adic Γ-function, Annals of Math., Series 2, t. 109, 1979, p. 569-581. | Zbl

[4] Gross (B.). - On the factorization of p-adic L-series, Invent. Math., Berlin, t. 57, 1980, p. 83-95. | Zbl | MR

[5] Lang (S.). - Cyclotomic fields, II. - New York, Heidelberg, Berlin, Springer-Verlag, 1980 (Graduate texts in Mathematics, 69). | Zbl | MR

[6] Tate (J.). - Rational Points on elliptic curves, Philips Lectures, Haverford College, 1961.