@article{10_14708_ma_v10i18_1526, author = {J. J. Telega}, title = {Determination of the potential form of operators}, journal = {Mathematica Applicanda}, pages = { 107--122}, publisher = {mathdoc}, volume = {10}, number = {18}, year = {1982}, doi = {10.14708/ma.v10i18.1526}, language = {pl}, url = {http://geodesic.mathdoc.fr/articles/10.14708/ma.v10i18.1526/} }