APA

Hammer J., Association for Computing Machinery, ACM Special Interest Group on Management Information Systems & ACM Special Interest Group on Information Retrieval. (2001). Proceedings of the 4th ACM international workshop on Data warehousing and OLAP. New York, NY: ACM.

Chicago

Hammer Joachim, Association for Computing Machinery, ACM Special Interest Group on Management Information Systems and ACM Special Interest Group on Information Retrieval. 2001. Proceedings of the 4th ACM international workshop on Data warehousing and OLAP. New York, NY: ACM.

Harvard

Hammer J., Association for Computing Machinery, ACM Special Interest Group on Management Information Systems and ACM Special Interest Group on Information Retrieval. (2001). Proceedings of the 4th ACM international workshop on Data warehousing and OLAP. New York, NY: ACM.

MLA

Hammer Joachim, Association for Computing Machinery, ACM Special Interest Group on Management Information Systems and ACM Special Interest Group on Information Retrieval. Proceedings of the 4th ACM international workshop on Data warehousing and OLAP. New York, NY: ACM. 2001.