@article{10_4064_ap170324_11_9, author = {Ulrich Abel}, title = {An identity for formal derivatives in a commutative algebra}, journal = {Annales Polonici Mathematici}, pages = {195--202}, publisher = {mathdoc}, volume = {119}, number = {3}, year = {2017}, doi = {10.4064/ap170324-11-9}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/ap170324-11-9/} }