no. S4
Cats
Publications mathématiques et informatique de Rennes, no. S4 (1975), article no. 1, 2 p. 
@article{PSMIR_1975___S4_A1_0,
     author = {Adelman, Omer},
     title = {Cats},
     journal = {Publications math\'ematiques et informatique de Rennes},
     eid = {1},
     publisher = {D\'epartement de Math\'ematiques et Informatique, Universit\'e de Rennes},
     number = {S4},
     year = {1975},
     language = {en},
     url = {www.numdam.org/item/PSMIR_1975___S4_A1_0/}
}
Adelman, Omer. Cats. Publications mathématiques et informatique de Rennes, no. S4 (1975), article  no. 1, 2 p. http://www.numdam.org/item/PSMIR_1975___S4_A1_0/