@article{10_4064_sm_128_1_1_17,
     author = {Zbigniew Pasternak-Winiarski},
     title = {On the dependence of the orthogonal projector on deformations of the scalar product},
     journal = {Studia Mathematica},
     pages = {1--17},
     publisher = {mathdoc},
     volume = {128},
     number = {1},
     year = {1998},
     doi = {10.4064/sm-128-1-1-17},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-128-1-1-17/}
}