{"inproceedings":{"@attributes":{"key":"conf\/ecoop\/Gabelgaard92","mdate":"2017-05-20"},"author":"Bent Gabelgaard","title":"Using Object-Oriented Programming Techniques for Implementing ISDN Supplementary Services.","pages":"213-232","ee":"https:\/\/doi.org\/10.1007\/BFb0053039","year":"1992","crossref":"conf\/ecoop\/1992","booktitle":"ECOOP","url":"db\/conf\/ecoop\/ecoop92.html#Gabelgaard92"}}