JÁKY, József. UNTERSUCHUNG DES STRASSENUNTERGRUNDES. Periodica Polytechnica Civil Engineering, [S. l.], v. 28, n. 1-4, p. 54–61, 1984. Disponível em: https://pp.bme.hu/ci/article/view/4005. Acesso em: 18 may. 2024.