Estimating the drilling rate of jumbo drills from Sievers’ J-miniature drill tests in sandstones and limestones from a mining exploitation in Asturias (Spain)

1. Martínez-Ibáñez, V.
2. Garrido, M.E.
3. Hidalgo-Signes, C.
4. Serón Gáñez, J.B.
5. Rabat, Á.
6. Álvarez-Fernández, M.I.
7. González-Nicieza, C.