Name Info Provider Link
subscription/membership/fee required Wiley https://onlinelibrary.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=0007-1323&date=1990&volume=77&issue=7&spage=774
subscription/membership/fee required Silverchair Information Systems https://academic.oup.com/bjs/article-lookup/doi/10.1002/bjs.1800770719