Айбабин, А.И.
(Материалы по археологии, истории и этнографии Таврии, 2003)
Nomadic Comans or Kipchaks, who are called the Polovcians in Russian chronicles, conquered the steppes of the Northern Black Sea littoral, which had been in the possessions of the Pechenegs in the middle of the 11th century. ...