Research indexSchüss/BielZeh1 Jan 1986·Open accessDOI10.3932/ethz-a-001113906Open accessSchüss/BielZeh · 1986DOI10.3932/ethz-a-001113906ReadRead at the publisherSaveCiteAdd to literature reviewFree to read at the publisherOpen it at the publisher to read it.Read at the publisherDiscussionAdd to the discussionRelated papersMoreDetailsPublished, languageSuggest a correction or report