@article{harder93,
	title = {Concurrency Control Issues in Nested Transactions},
	author = {K. Rothermel T. Harder},
	journal = {Proceedings of the 19th International Conference on Very Large Data Bases (VLDB'93)},
	month = {January},
	number = {1},
	pages = {39--74},
	volume = {2},
	year = {1993},
	biburl = {http://www.bibsonomy.org/bibtex/20533004e5fe56fa42c78518d06aa16ef/charoy},
	keywords = {concurrency control, hierarchie locking, nested object transaction, }
}