. . . "Source: Freebase - The World's database". _:qXYtJPId1715. _:qXYtJPId1714. _:qXYtJPId1713. . . "Quarterly Journal of Engineering Geology & Hydrogeology"@en. . . . . . . . . . . . . _:qXYtJPId1715 "QJEGH". _:qXYtJPId1715 . "http://qjegh.geoscienceworld.org/". . . _:qXYtJPId1713 "6420037". _:qXYtJPId1713 . _:qXYtJPId1714 "Quarterly_Journal_of_Engineering_Geology_$0026_Hydrogeology". _:qXYtJPId1714 .