Authors:
Kretschmar, P
Wilms, J
Staubert, R
Kendziorra, E
Kreykenbohm, I
Gruber, D
Heindl, W
Rothschild, R
Citation: P. Kretschmar et al., New observations of the vela X-1 cyclotron lines with RXTE - Preliminary results, ASTROPHYS L, 38(1-6), 1999, pp. 157-160