@article{10_4064_sm_31_1_15_27,
     author = {R. Phillips},
     title = {On symplectic mappings of contraction operators},
     journal = {Studia Mathematica},
     pages = {15--27},
     publisher = {mathdoc},
     volume = {31},
     number = {1},
     year = {1968},
     doi = {10.4064/sm-31-1-15-27},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-31-1-15-27/}
}