@article{10_4064_ap_42_1_369_386,
     author = {Zofia Szmydt and Bogdan Ziemian},
     title = {Fundamental solution for operators preserving a quadratic form},
     journal = {Annales Polonici Mathematici},
     pages = {369--386},
     publisher = {mathdoc},
     volume = {42},
     number = {1},
     year = {1983},
     doi = {10.4064/ap-42-1-369-386},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-42-1-369-386/}
}