Authors: Boehnhardt, H Tozzi, GP Birkle, K Hainaut, O Sekiguchi, T Vair, M Watanabe, J Rupprecht, G

Citation: H. Boehnhardt et al., Visible and near-IR observations of transneptunian objects - Results from ESO and Calar Alto Telescopes, ASTRON ASTR, 378(2), 2001, pp. 653-667

Authors: Rifatto, A Rafanelli, P Ciroi, S Radovich, M Vennik, J Richter, G Birkle, K

Citation: A. Rifatto et al., The active merging system ESO 202-G23 (Carafe Nebula), ASTRONOM J, 122(5), 2001, pp. 2301-2317

Authors: Castro-Tirado, AJ Gorosabel, J Davies, J Leggett, S Greiner, J Birkle, K Thompson, D Hagen, HJ Trapero, J Sanchez, E Campos, A Metcalfe, N Bejar, V Cairos, LM Corradi, R Guerrero, M Gutierrez, C Iglesias, J Kemp, S Licandro, J Mora, A Oscoz, A Sabalisk, N Vilchez, J Villaver, E Zapatero-Osorio, MR Guziy, S Shlyapnikov, A Pedersen, H

Citation: Aj. Castro-tirado et al., Optical/IR follow-up observations of Gamma-Ray bursts detected by RXTE, ASTROPHYS L, 39(1-6), 1999, pp. 709-712

Authors: Boehnhardt, H Rainer, N Birkle, K Schwehm, G

Citation: H. Boehnhardt et al., The nuclei of comets 26P/Grigg-Skjellerup and 73P/Schwassmann-Wachmamn 3, ASTRON ASTR, 341(3), 1999, pp. 912-917