@article{MAN_1974__211_162658,
     author = {Ivan Singer},
     title = {On {Some} {Duality} {Theorems} for {Bases,} {Finite} {Dimensional} {Decompositions} and ...  {Systems.}},
     journal = {Mathematische Annalen},
     pages = {337--343},
     publisher = {mathdoc},
     volume = {211},
     year = {1974},
     zbl = {0275.46009},
     url = {http://geodesic.mathdoc.fr/item/MAN_1974__211_162658/}
}