An Extended CLEF eHealth Test Collection for Cross-lingual Information Retrieval in the Medical Domain. In: Advances in Information Retrieval; 41st European Conference on IR Research, ECIR 2019 , Lecture Notes in Computer Science, ISSN 0302-9743, 1, pp. 188-195, Springer International Publishing, Berlin, Germany, ISBN 978-3-030-15719-7 (url, local PDF, bibtex)