IVANYUK, E.; SUPRUNCHUK, V. ABOUT THE POSSIBILITY OF USING THE RED SLADGE IN THE SYNTHESIS OF INORGANIC PIGMENTS COFFE-BROWN COLOUR. Sworld-Us Conference proceedings, [S. l.], v. 1, n. usc18-01, p. 41–44, 2023. DOI: 10.30888/2709-2267.2023-18-01-003. Disponível em: https://www.proconference.org/index.php/usc/article/view/usc18-01-003. Acesso em: 20 may. 2024.