a book on polyhedra
... that a book on polyhedra by Piero della Francesca fell victim to "probably the first full-blown case of plagiarism in the history of mathematics" when Luca Pacioli copied it in his Divina proportione?
... that <b id="mwAzU"><a href="./De_quinque_corporibus_regularibus" id="mwAzY" rel="mw:WikiLink" title="De quinque corporibus regularibus">a book on polyhedra</a></b> by <a href="./Piero_della_Francesca" id="mwAzc" rel="mw:WikiLink" title="Piero della Francesca">Piero della Francesca</a> fell victim to "probably the first full-blown case of plagiarism in the history of mathematics" when <a href="./Luca_Pacioli" id="mwAzg" rel="mw:WikiLink" title="Luca Pacioli">Luca Pacioli</a> copied it in his <i id="mwAzk"><a href="./Divina_proportione" id="mwAzo" rel="mw:WikiLink" title="Divina proportione">Divina proportione</a></i>?