@article{JAC_2006__24_2_a3,
     author = {Merchant, Eric},
     title = {Structure and automorphism groups of {Hadamard} designs},
     journal = {Journal of Algebraic Combinatorics},
     pages = {137--155},
     publisher = {mathdoc},
     volume = {24},
     number = {2},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JAC_2006__24_2_a3/}
}