1
by Baryshev, Yurij, Teerikorpi, Pekka
Published 2012
Springer Netherlands
Subjects: '; ...Astronomy, Astrophysics and Cosmology...

2
by Teerikorpi, Pekka, Valtonen, Mauri, Lehto, K., Lehto, Harry
Published 2009
Springer New York
Subjects: '; ...Astronomy, Astrophysics and Cosmology...