Frankl, PKupayskii, A2018-11-082018-11-082018-11-08201810.1016/j.jcta.2017.11.003https://infoscience.epfl.ch/handle/20.500.14299/150210WOS:000424188900007Erdos-Ko-Rado theorem for {0, +/- 1}-vectorstext::journal::journal article::research article