Giuliano Milani, « San Simone, San Gal e i fi’ di Stagno. Fonti documentarie vecchie e nuove per la datazione della tenzone con Forese », HAL-SHS : histoire, ID : 10670/1.3dt7h0
The article examines three documentary sources including one unpublished and never considered in Dante studies that suggest dating the tussle with Forese Donati to the second half of 1294