@article{RSMUP_1967__38__14_0,
     author = {Crapo, Henry H.},
     title = {Structure theory for geometric lattices},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {14--22},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {38},
     year = {1967},
     mrnumber = {220637},
     zbl = {0149.25901},
     language = {en},
     url = {http://archive.numdam.org/item/RSMUP_1967__38__14_0/}
}