Karelin A.A., Andreev V.I., Korotkina R.N. (1991) Experience in using the automatic biochemical analyzer "Spectrum" from "Abbott Laboratories" in the clinical biochemistry laboratory of the Institute of Surgery named for A.V. Vishnevskiĭ of the Academy of Medical Sciences of the USSR.. Voprosy Meditsinskoi Khimii, 37(3), 73-75.

Karelin A.A. et al. Experience in using the automatic biochemical analyzer "Spectrum" from "Abbott Laboratories" in the clinical biochemistry laboratory of the Institute of Surgery named for A.V. Vishnevskiĭ of the Academy of Medical Sciences of the USSR. // Voprosy Meditsinskoi Khimii. - 1991. - V. 37. -N 3. - P. 73-75.

Karelin A.A. et al., "Experience in using the automatic biochemical analyzer "Spectrum" from "Abbott Laboratories" in the clinical biochemistry laboratory of the Institute of Surgery named for A.V. Vishnevskiĭ of the Academy of Medical Sciences of the USSR.." Voprosy Meditsinskoi Khimii 37.3 (1991): 73-75.

Karelin, A. A., Andreev, V. I., Korotkina, R. N. (1991). Experience in using the automatic biochemical analyzer "Spectrum" from "Abbott Laboratories" in the clinical biochemistry laboratory of the Institute of Surgery named for A.V. Vishnevskiĭ of the Academy of Medical Sciences of the USSR.. Voprosy Meditsinskoi Khimii, 37(3), 73-75.