author        = "Jorissen, A. and Mayer, A. and van Eck, S. and Ottensamer,
                       R. and Kerschbaum, F. and Ueta, T. and Bergman, P. and
                       Blommaert, J. A. D. L. and Decin, L. and Groenewegen, M. A.
                       T. and Hron, J. and Nowotny, W. and Olofsson, H. and Posch,
                       T. and Sjouwerman, L. O. and Vandenbussche, B. and
                       Waelkens, C.",
      title         = "{X Herculis and TX Piscium: two cases of ISM interaction
                       with stellar winds observed by Herschel}",
      year          = "2011",