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For refcode 1981ApJ...247..419U:
Retrieve 18 NED objects in this reference.
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Ap. J.
1981 vol. 247 p. 419-442
ULVESTAD J.S., WILSON A.S., SRAMEK R.A.
Radio structures of Seyfert galaxies. II

Retrieve 18 NED objects in this reference.
Please click here for ADS abstract