@article{Herlihy90a,
 author = {M. Herlihy},
 title = {Apologizing versus asking permission: optimistic concurrency control for abstract data types},
 journal = {ACM Transactions on Database Systems (TODS)},
 volume = {15},
 number = {1},
 year = {1990},
 issn = {0362-5915},
 pages = {96--124},
 doi = {http://doi.acm.org/10.1145/77643.77647},
 publisher = {ACM Press},
 }