Union Catalogue of Manuscripts from the Islamicate World

A discussion of doubtful points in the Tauḍīḥ of Maḥbūbī, Maḥmūd ibn ʻUbayd Allāh, d. 1344 or 5 , itself a commentary on Maḥbūbīʼs own work Tanqīḥ al-usūl

The above references reflect only the current coverage of the online catalogue and may not be comprehensive.