@inproceedings{sgem2013s01028,
  title = {THE ORDOVICIAN IN VALONGO ANTICLINE (NORTHERN PORTUGAL): STATE OF ART},
  author = {Helena Couto},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 13th SGEM GeoConference on SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING},
  year = {2013},
  pages = {},
  publisher = {Stef92 Technology},
  doi = {10.5593/sgem2013/ba1.v1/s01.028}
}