no. 1
Singular operations on algebras (generalized contractions)
Annales de l'institut Henri Poincaré. Section A, Physique Théorique, Tome 20 (1974) no. 1, pp. 1-19 
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     author = {Ginocchio, Maurice},
     title = {Singular operations on algebras (generalized contractions)},
     journal = {Annales de l'institut Henri Poincar\'e. Section A, Physique Th\'eorique},
     pages = {1--19},
     year = {1974},
     publisher = {Gauthier-Villars},
     volume = {20},
     number = {1},
     mrnumber = {360725},
     zbl = {0292.17001},
     language = {en},
     url = {https://www.numdam.org/item/AIHPA_1974__20_1_1_0/}
}
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Ginocchio, Maurice. Singular operations on algebras (generalized contractions). Annales de l'institut Henri Poincaré. Section A, Physique Théorique, Tome 20 (1974) no. 1, pp. 1-19. https://www.numdam.org/item/AIHPA_1974__20_1_1_0/

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