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\section{Conclusion}  Use of collection bibliometrics can give highly relevant reveal new  information about use and accessibility of access to  resources, both printed and electronic. Despite massive reduction reductions  in the size of readily available physical printed  astronomy collection, researches seem to have almost everything they need. Of course, a researcher uses resources she or he can easily  access, and collections placed in remote closed storage are not easy to access. hardly fit that description.  A survey was made in 2012 of bachelor’s theses at University of Helsinki Department of Physics, with astronomy B.Sc. theses included. Approximaletely 70\% of the references were to online journals, the rest to other online resources (course materials, course books, online image and data sources). This seems to indicate that the new generation of students are using online sources almost exclusively.