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11 |
The determination of the luminosity function of nearby stars
Wielen, Roland. - Heidelberg : Astronom. Rechen-Inst., 1983
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12 |
The density-wave theory of spiral galaxies, comparison between theory and observations
Wielen, Roland. - Heidelberg : Astronom. Rechen-Inst., 1979
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13 |
Das Altern von Spiralarmen
Schwerdtfeger, Hans M.. - Heidelberg : Astronom. Rechen-Inst., [1978?]
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14 |
The diffusion of stellar orbits derived from the observed age-dependence of the velocity dispersion
Wielen, Roland. - Heidelberg : Astronom. Rechen-Inst., 1977
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15 |
Density-wave theory of the special structure of galaxies
Wielen, Roland. - Heidelberg : Astronom. Rechen-Inst., 1975, Repr.
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16 |
Dynamics of star clusters
Wielen, Roland. - Heidelberg : Astronom. Rechen-Inst., 1975
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17 |
On the age dependence of the spatial distribution and velocity dispersion of stars in a spiral galaxy
Wielen, Roland. - Heidelberg : Astronom. Rechen-Inst., 1975
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18 |
Spiralarm-Indikatoren, Dichtewellentheorie und optische Beobachtungen
Wielen, Roland. - Heidelberg : Astronom. Rechen-Inst., 1975
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19 |
A comparison of numerical methods for the study of star cluster dynamics
Aarseth, Sverre J.. - Heidelberg : Astronom. Rechen-Inst., 1974
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20 |
On the numerical integration of the N-body problem for star clusters
Wielen, Roland. - Heidelberg : Astronom. Rechen-Inst., 1974
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Administration
