http://books.google.at/books?id=NGuJdXA_UZwC&pg=PA289&lpg=PA289&dq=cempoala+tolteken&source=bl&ots=K0Xvr98zm4&sig=ClV4-39ixr__IGzdRgXgFY8HR-4&hl=de&sa=X&ei=9z8pT4vEK4ej4gT_nMS8Aw&ved=0CC4Q6AEwAg#v=onepage&q=cempoala%20tolteken&f=false| A scheene Koatn mid de Waundarungen vo de Toltekn in Sidn owi; Ausn Biachl, Neue Chronik der Weltgeschichte vom Chronik Valog.