Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleRESEARCH TOOLS AND RESOURCES.AuthorsPostma, JohannesPublicationAnnals of the New York Academy of Sciences, 1977, Vol 292, Issue 1, p564ISSN0077-8923Publication typeArticleDOI10.1111/j.1749-6632.1977.tb47773.x