Research index·Book chapterExtensionsRuys1 Jan 1974DOI10.1007/978-94-011-7635-4_7Book chapterExtensionsRuys · 1974 · SubscriptionDOI10.1007/978-94-011-7635-4_7ReadRead at the publisherSaveCiteAdd to literature reviewPaywalledThe full text is at the publisherOpen it at the publisher to read it.Read at the publisherDiscussionAdd to the discussionTopicsComputer scienceRelated papersMoreDetailsPublished, issue, languageSuggest a correction or report
