q=Papers+presented+before+the+4th+Symposium+on+Coal+Mine+Drainage+Research&searchType=standard&isFacet=true&view=standard&rows=10&sortWay=score&sortOrder=desc&searchWay0=marc&logical0=AND
rows=10&searchWay0=marc&logical0=AND
Papers presented before the 4th Symposium on Coal Mine Drainage Research