@article{BosVogelKijker1990,
   title     = {Kleine Vliegenvanger in het Kniphorstbos},
   author    = {Bos, Johan},
   journal   = {In de Vogelkijker},
   volume    = {6},
   number    = {2},
   pages     = {17--19},
   year      = {1990}
}