1. Tel’ LZ, Agadzhanyan NA, Khamchiev KM, Tsirkin VI, Lysenkov SP. Normal’naya fiziologiya [Normal physiology]. M.: Litterra; 2021. (In Russ.)
2. Ocular surface system integrity
3. TFOS DEWS II Tear Film Report
4. Avetisov SÉ, Safonova TN, Novikov IA, Pateiuk LS, Griboedova IG. Ocular surface acidity and buffering system (by studying the conjunctival sac). The Russian Annals of Ophthalmology = Vestnik oftal’mologii. 2014;130(5):5-10. (In Russ.)