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@article{MASLO_1983__33_1_a17, author = {M\"uller, Winfried B.}, title = {Formal integration in composition rings}, journal = {Mathematica slovaca}, pages = {121--126}, publisher = {mathdoc}, volume = {33}, number = {1}, year = {1983}, mrnumber = {689287}, zbl = {0512.12015}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1983__33_1_a17/} }
Müller, Winfried B. Formal integration in composition rings. Mathematica slovaca, Tome 33 (1983) no. 1, pp. 121-126. http://geodesic.mathdoc.fr/item/MASLO_1983__33_1_a17/