@article{10_4064_sm_46_3_301_313, author = {J. Janas}, title = {Semi-spectral integrals and related mappings}, journal = {Studia Mathematica}, pages = {301--313}, publisher = {mathdoc}, volume = {46}, number = {3}, year = {1973}, doi = {10.4064/sm-46-3-301-313}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-46-3-301-313/} }