@article{10_4064_sm_34_1_43_67,
     author = {S. Kwapie\'n and A. Pe{\l}czy\'nski},
     title = {The main triangle projection in matrix spaces and its applications},
     journal = {Studia Mathematica},
     pages = {43--67},
     publisher = {mathdoc},
     volume = {34},
     number = {1},
     year = {1970},
     doi = {10.4064/sm-34-1-43-67},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-34-1-43-67/}
}