Jellema, J., A. Tchistiakov, D. Lowe, R. Bowie, H. Preuss, T. Stych, D. Capova, T. Mardal, and J. Belickas (2004) The Inventory on Data Models and Lithology Standards, eEarth Work Package 4, delivery 4.1, Volume 1. Final report (http://fraga.nitg.tno
Jellema, J., A. Tchistiakov, D. Lowe, R. Bowie, H. Preuss, T. Stych, D. Capova, T. Mardal, and J. Belickas (2004) The Inventory on Data Models and Lithology Standards, eEarth Work Package 4, delivery 4.1, Volume 1. Final report (http://fraga.nitg.tno.nl/dinoLks/documents/reports/wp4/data_models_and_lithology_standards.pdf).