@incollection {LA\&D\&a, title = {An empirical investigation on scientific observation}, booktitle = {Theory of Knowledge and Science Policy}, year = {1979}, pages = {3{\textendash}36}, publisher = {Communication \& Cognition}, author = {Apostel, Leo and Batens, Diderik and Breusegem, Erwin and De Coninck, Jan and De Waele, Danny and Pinxten, Rik and Swings, Jean and Van Bendegem, Jean Paul and Vandamme, Fernand}, editor = {Callebaut, Werner and De Mey, Marc and Pinxten, Rik and Vandamme, Fernand} }