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by: Ruokonen, Ville.

In: Ilmailu. - ISSN 0019-252X. - 2014 : 9, s.44-51
Journal article
no cover found
by: Ruokonen, Ville.

In: Ilmailu. - ISSN 0019-252X. - 2012 : 6, s.62-64
Journal article
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