Learning Ontologies to Improve Text Clustering and Classification. From Data and Information Analysis to Knowledge Engineering, 334--341, Springer Berlin Heidelberg, 2006. [PUMA: 2222 classification clustering ol puma selected tau text]
Participatory Patterns in an International Air Quality Monitoring Initiative. PLoS ONE, (10)8:e0136763, Public Library of Science, August 2015. [PUMA: 2222 air airprobe everyaware game myown pollution puma quality selected]
Testeintrag. 2019. [PUMA: myown mytag2019]