The effects of indexing strategy-query term combination on retrieval effectiveness in a Swedish full text database

by Ahlgren, Per
Published 2004

Logikbaserade dokumentåtervinningsmodeller

by Ahlgren, Per
Published 1996

Chlorite delignification of spruce wood.

by Ahlgren, Per Arne
Published 1970

Granularity of algorithmically constructed publication-level classifications of research publications: Identification of specialties

by Sjögårde, Peter, Ahlgren, Per
Published 2020-02-01

Enhancing direct citations: A comparison of relatedness measures for community detection in a large set of PubMed publications

by Ahlgren, Per, Chen, Yunwei, Colliander, Cristian, van Eck, Nees Jan
Published 2020-03-01