@article{Pollard:1975,
      author        = "Pollard, K. R. and  Wright, D. J. and  Zima, W. and 
                       Cottrell, P. L. and  De Cat, P.",
      title         = "{High-resolution spectroscopy and mode identification in
                       non-radially pulsating stars}",
      year          = "2008",
}