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@article{MOMA_1974__78_186346, author = {Michael Cernusca}, title = {L\"osung der formalen {Potenzreihen} {eA} {eB} = {eX} und {eA+Bt} = {eAeX.}}, journal = {Monatshefte f\"ur Mathematik}, pages = {4--14}, publisher = {mathdoc}, volume = {78}, year = {1974}, zbl = {0292.13010}, url = {http://geodesic.mathdoc.fr/item/MOMA_1974__78_186346/} }
Michael Cernusca. Lösung der formalen Potenzreihen eA eB = eX und eA+Bt = eAeX.. Monatshefte für Mathematik, Tome 78 (1974), pp. 4-14. http://geodesic.mathdoc.fr/item/MOMA_1974__78_186346/