Belikov P.P. (1970) Fibrinolytic and blood clotting factors in human saliva. Voprosy Meditsinskoi Khimii, 16(5), 549-552.

et al. Fibrinolytic and blood clotting factors in human saliva // Voprosy Meditsinskoi Khimii. - 1970. - V. 16. -N 5. - P. 549-552.

et al., "Fibrinolytic and blood clotting factors in human saliva." Voprosy Meditsinskoi Khimii 16.5 (1970): 549-552.

Belikov, P. P. (1970). Fibrinolytic and blood clotting factors in human saliva. Voprosy Meditsinskoi Khimii, 16(5), 549-552.