BIBLIOGRAPHY REFERENCE: BOOK Matematika v yeyo istorii Author A. Yushkevich (Author) Year of Publication 1996 City Moscow Other Numbers 11506 See reference for OpenMind ISMI items with this reference Person: Ġiyāṯ al-Dīn Abū al-Fatḥ ʿUmar ibn Ibrāhīm al-Ḫayyāmī al-Nīšāpūrī Text: Risālaẗ fī al-barāhīn ʿalỳ masāʾil al-jabr wa-al-muqābalaẗ