@article{10_4153_CJM_1969_133_7, author = {Mcarthur, C. W. and Singer, Ivan and Levin, Mark}, title = {On the {Cones} {Associated} with {Biorthogonal} {Systems} and {Bases} in {Banach} {Spaces}}, journal = {Canadian journal of mathematics}, pages = {1206--1217}, year = {1969}, volume = {21}, number = {1}, doi = {10.4153/CJM-1969-133-7}, url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1969-133-7/} }