@article{agora 61814, author = {Erik Groenen}, title = {Van negen tot vijf: verleden tijd?}, volume = {3}, year = {1987}, url = {https://openjournals.ugent.be/agora/article/id/61814/}, issue = {2}, doi = {10.21825/agora.v3i2.14997}, abstract = {}, month = {5}, pages = {p. 15}, publisher={Stichting Tijdschrift AGORA}, journal = {AGORA Magazine} }