Mining Encyclopedia

Wersja elektroniczna tego Encyklopedii Górniczej

The electronic version of this encyclopedia, which is being prepared for the publishing together with the well known "Rubricon" encyclopedic resource, will contain the complete versions of the texts, illustrations, tables, and pictures, and also, as we hope, your additions and comments for some outdated and less than actual articles.

From site http://mining-enc.com/