Blokhuis, A., A. E. Brouwer, A. Chowdhury, P. Frankl, T. Mussche, B. Patkós, and T. Szőnyi. “A Hilton-Milner Theorem for Vector Spaces”. The Electronic Journal of Combinatorics, Vol. 17, no. 1, May 2010, p. R71, doi:10.37236/343.