1. Balashevich L.I. Glaznye proyavleniya diabeta. (Eye involvement in diabetes mellitus.) Saint Petersburg: Medical Academy of Post-Graduate Education. 2004; 282 p.
2. Balashevich L.I., Izmaylov A.S. Diabeticheskaya oftal'mopatiya. (Diabetic oculopathy.) Saint Petersburg: Chelovek. 2012; 336 p.
3. The role of electroretinography in diagnosis and studying pathogenesis of diabetic retinopathy;Zueva,2002
4. Kondrat'eva L.V. Biguanidy v terapii sakharnogo diabeta. (Biguanides in treatment of diabetes mellitus.) Ed. by A.S. Ametov. Moscow: Planida. 2013; 48 p.
5. Clinical and functional characteristics of the organ of vision in diabetes mellitus.;Moshetova;Vrach,2012