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| Demonstrations on field in M31. |
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| Field in NGC 821. | PN velocities around NGC 821. |
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| PN velocities around NGC 7457. |
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| NGC 7457 in left arm. | NGC 7457 in right arm. | Subsection of field in left. | Subsection of field in right. |
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| PN.S mounted at WHT | Velocity dispersion profile of NGC 7457. | Velocity dispersion profile of NGC 821. |
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| PN velocities around NGC 3379 | LATEST VERSION (PR 2003) | Velocity dispersion profile in NGC 3379 | |||