@incollection{MEM_2011_40_1_a21,
     author = {Todorov, Vladimir},
     title = {Minimal {Subspaces} with {Maximal} {Dimensioanal} {Diameters}},
     booktitle = {},
     series = {Mathematics and Education in Mathematics},
     pages = {219--222},
     year = {2011},
     volume = {40},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MEM_2011_40_1_a21/}
}