H. Javadi and K. Burrill. AZERBAIJAN x. Azeri Turkish LiteratureArxivləşdirilib 2013-02-01 at the Wayback Machine:"It was in the 13th and 14th centuries that a stylized poetry began to develop, partly due to Eastern Turkic traditions brought from Khorasan during the Mongol occupation. An early example is a couple of verses of Turkish and Persian poetry attributed to the late-13th-century minor poet Sheikh ʿEzz-al-Din Esfarāʾini, known as Ḥasanoḡlu or Pur-e Ḥasan (cf. Heyʾat, 1979, p. 26)."
H. Javadi and K. Burrill. AZERBAIJAN x. Azeri Turkish LiteratureArxivləşdirilib 2013-02-01 at the Wayback Machine:"It was in the 13th and 14th centuries that a stylized poetry began to develop, partly due to Eastern Turkic traditions brought from Khorasan during the Mongol occupation. An early example is a couple of verses of Turkish and Persian poetry attributed to the late-13th-century minor poet Sheikh ʿEzz-al-Din Esfarāʾini, known as Ḥasanoḡlu or Pur-e Ḥasan (cf. Heyʾat, 1979, p. 26)."
