al. (1990:349), also contend that the integrity of the deepest occupation surfaces is supported by a definitive separation of superimposed living floors on both qualitative and quantitative geological, geochemical, and sedimentalogical grounds, by lithic refitting and by raw material studies. (jqjacobs.net)
And if there is no a delineation in who offers these services — with a definitive separation of companies — an agent's existing author clients could get ignored because an agent is too busy cashing in on people bent on being «represented» by a real agent. (killzoneblog.com)
Most attempts to form a clear and definitive separation are fiercely partisan. (minusspace.com)