János DemetrovicsGyula O. H. KatonaDezsö MiklósOleg SeleznjevBernhard ThalheimAsymptotic Properties of Keys and Functional Dependencies in Random Databases.151-1661998190Theor. Comput. Sci.2db/journals/tcs/tcs190.html#DemetrovicsKMST98https://doi.org/10.1016/S0304-3975(97)00089-3