Authors: Wakker, BP Kalberla, PMW van Woerden, H de Boer, KS Putman, ME

Citation: Bp. Wakker et al., HI spectra and column densities toward HVC and IVC probes, ASTROPH J S, 136(2), 2001, pp. 537-578

Authors: Hunter, DA Elmegreen, BG van Woerden, H

Citation: Da. Hunter et al., Neutral hydrogen and star formation in the irregular galaxy NGC 2366, ASTROPHYS J, 556(2), 2001, pp. 773-800

Authors: Wakker, BP Howk, JC Savage, BD van Woerden, H Tufte, SL Schwarz, UJ Benjamin, R Reynolds, RJ Peletier, RF Kalberla, PMW

Citation: Bp. Wakker et al., Accretion of low-metallicity gas by the Milky Way, NATURE, 402(6760), 1999, pp. 388-390

Authors: van Woerden, H Schwarz, UJ Peletier, RF Wakker, BP Kalberla, PMW

Citation: H. Van Woerden et al., A confirmed location in the Galactic halo for the high-velocity cloud 'chain A', NATURE, 400(6740), 1999, pp. 138-141