Introduction to the Fluent Calculus

@article{fluentcalculus-etai2,
   apice = {FluentcalculusEtai2},
   author = {Michael Thielscher},
   journal = {Electronic Transactions on Artificial Intelligence},
   number = {3-4},
   numpages = 14,
   pages = {179--192},
   title = {Introduction to the Fluent Calculus},
   url = {http://www.ep.liu.se/ej/etai/1998/006/},
   volume = 2,
   year = 1998
}