@article{107197, author = {Erich Barv\'\i nek}, title = {Antiprojectors with applications in the spectral theory}, journal = {Archivum Mathematicum}, volume = {020}, year = {1984}, pages = {141-147}, zbl = {0576.47018}, mrnumber = {784865}, language = {en}, url = {http://dml.mathdoc.fr/item/107197} }
Barvínek, Erich. Antiprojectors with applications in the spectral theory. Archivum Mathematicum, Tome 020 (1984) pp. 141-147. http://gdmltest.u-ga.fr/item/107197/
Finite-dimensional vector spaces, D. Van Nostrand 1958. (1958) | MR 0089819 | Zbl 0107.01404
Ocнoвы линeйнoй aлгeбpы, Mocквa 1970. (1970)