Harald Beyer
... that Harald Beyer's textbook on literary history was the most used textbook in its field at Norwegian universities from the 1950s to the mid 1990s?
... that <b id="mwBRU"><a class="mw-disambig" href="./Harald_Beyer" id="mwBRY" rel="mw:WikiLink" title="Harald Beyer">Harald Beyer</a></b><span about="#mwt27" class="nowrap" data-mw="{&quot;parts&quot;:[{&quot;template&quot;:{&quot;target&quot;:{&quot;wt&quot;:&quot;'&quot;,&quot;href&quot;:&quot;./Template:'&quot;},&quot;params&quot;:{},&quot;i&quot;:0}}]}" id="mwBRc" style="padding-left:0.1em;" typeof="mw:Transclusion"><span typeof="mw:Entity">'</span></span>s textbook on <a href="./History_of_literature" id="mwBRg" rel="mw:WikiLink" title="History of literature">literary history</a> was the most used textbook in its field at <a href="./Norway" id="mwBRk" rel="mw:WikiLink" title="Norway">Norwegian</a> universities from the 1950s to the mid<span id="mwBRo" typeof="mw:Entity"> </span>1990s?