ON SOME QUESTIONS FOR HORIZONTAL DRAIN CALCULATION. Proceedings of the YSU C: Geological and Geographical Sciences, Yerevan, Armenia, v. 40, n. 2 (210), p. 136–138, 2006. DOI: 10.46991/PYSU:C.2006.40.2.136. Disponível em: https://journals.ysu.am/index.php/proceedings-geol-geogr/article/view/vol40_no2_2006_pp136-138. Acesso em: 22 jan. 2026.