Korenovskyy, A.A., A.K. Lerner, and A.M. Stokolos. “A Note on the Maximal Gurov-Reshetnyak Condition”.
Annales Fennici Mathematici
32, no. 2 (August 1, 2007): 461–470. Accessed April 4, 2025. https://afm.journal.fi/article/view/135204.