@article{BosNissim2007Lanius,
   title     = {Verbreitung und Herkunft von Lachm{\"o}wen (Larus ridibundus) an der Saar im Winter 1999/2000},
   author    = {Bos, Johan and Nissim, Malvina},
   journal   = {Lanius},
   volume    = {33},
   pages     = {18--26},
   year      = {2007}
}