Rudolf Ahlswede Harout K. Aydinian Levon H. Khachatrian Forbidden (0, 1)-vectors in Hyperplanes of R<sup>n</sup>: The unrestricted case. 151-167 2005 37 Des. Codes Cryptography 1 http://dx.doi.org/10.1007/s10623-004-3811-9 db/journals/dcc/dcc37.html#AhlswedeAK05