Sh:223

Bib entry
@article{Sh:223,
 author = {Droste, Manfred and Shelah, Saharon},
 title = {{On the universality of systems of words in permutation groups}},
 journal = {Pacific J. Math.},
 fjournal = {Pacific Journal of Mathematics},
 volume = {127},
 number = {2},
 year = {1987},
 pages = {321--328},
 issn = {0030-8730},
 mrnumber = {881762},
 mrclass = {20F10 (20B30)},
 url = {http://projecteuclid.org/euclid.pjm/1102699565}
}