ROLLER, Béla. DISCRETE ANALYSIS OF STEADY TRANSPORT PROBLEMS IN CASE OF A THRESHOLD GRADIENT Periodica Polytechnica Civil Engineering, [S. l.], v. 23, n. 2, p. 101–115, 1979. Disponível em: https://pp.bme.hu/ci/article/view/4128. Acesso em: 23 jul. 2024.