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Ossenkopf, V. and Muller, H.S.P. and Lis, D.C. and Schilke, P. and Bell, T.A. and Bruderer, S. and Bergin, E.A. and Ceccarelli, C. and Comito, C. and Stutzki, J. and Bacman, A. and Baudry, A. and Benz, A.O. and Benedettini, M. and Berne, O. and Blake, G.A. and Boogert, A. and Bottinelli, S. and Boulanger, F. and Cabrit, S. and Caselli, P. and Caux, E. and Cernicharo, J. and Codella, C. and Coutens, A. and Crimier, N. and Crockett, N.R. and Daniel, F. and Demyk, K. and Dieleman, P. and Dominik, C. and Dubernet, M.-L. and Emprechtinger, M. and Encrenaz, P. and Falgarone, E. and France, K. and Fuente, A. and Gerin, M. and Giesen, T.F. and Di Giorgio, A.M. and Goicoechea, J.R. and Goldsmith, P.F. and Gusten, R. and Harris, A. and Helmich, F. and Herbst, E. and Hily-Blant, P. and Jacobs, K. and Jacq, T. and Joblin, Ch. and Johnstone, D. and Kahane, C. and Kama, M. and Klein, T. and Klotz, A. and Kramer, C. and Langer, W. and Lefloch, B. and Leinz, C. and Lorenzani, A. and Lord, S.D. and Maret, S. and Martin, P.G. and Martin-Pintado, J. and McCoey, C. and Melchior, M. and Melnick, G.J. and Menten, K.M. and Mookerjea, B. and Morris, P. and Murphy, J.Anthony and Neufeld, D.A. and Nisini, B. and Pacheco, S. and Pagini, L. and Parise, B. and Pearson, J.C. and Perault, M. and Phillips, T.G. and Plume, R. and Quin, S.-L. and Rizzo, R. and Rollig, M. and Salez, M. and Saraceno, P. and Schlemmer, S. and Simon, R. and Schuster, K. and van der Tak, F.F.S. and Tielens, A.G.G.M. and Teyssier, D. and Trappe, Neil and Vastel, C. and Viti, S. and Wakelam, V. and Walters, A. and Wang, S. and Whyborn, N. and van der Wiel, M. and Yorke, H.W. and Yu, S. and Zmuidzinas, J. (2010) Detection of interstellar oxidaniumyl: Abundant H2O+ towards the star-forming regions DR21, Sgr B2, and NGC6334. Astronomy & Astrophysics, 518 (L.111). pp. 1-5. ISSN 0004-6361

Schilke, P. and Comito, C. and Muller, H.S.P. and Bergin, E.A. and Herbst, E. and Lis, D.C. and Neufeld, D.A. and Phillips , T.G. and Bell, T.A. and Blake, G.A. and Cabrit, S. and Caux, E. and Ceccarelli, C. and Cernicharo, J. and Crockett, N.R. and Daniel, F. and Dubernet, M.-L. and Emprechtinger, M. and Encrenaz, P. and Falgarone, E. and Gerin, M. and Giesen, T.F. and Goicoechea, J.R. and Goldsmith, P.F. and Gupta, H. and Joblin, C. and Johnstone, D. and Langer, W.D. and Latter, W.B. and Lord, S.D. and Maret, S. and Martin, P.G. and Melnick, G.J. and Menten, K.M. and Morris, P. and Murphy, J.Anthony and Ossenkopf, V. and Pagini, L. and Pearson, J.C. and Perault, M. and Plume, R. and Qin, S.-L. and Salez, M. and Schlemmer, S. and Stutzki, J. and Trappe, Neil and van der Tak, F.F.S. and Vastel, C. and Wang, S. and Yorke, H.W. and Yu, S. and Erickson, N. and Maiwald, F.W. and Kooi, J. and Karpov, A. and Zmuidzinas, J. and Boogert, A. and Schieder, R. and Zaal, P. (2010) Herschel observations of ortho- and para-oxidaniumyl (H2O+) in spiral arm clouds toward Sagittarius B2(M). Astronomy & Astrophysics, 521 (L11). pp. 1-7. ISSN 0004-6361