@article{SIGMA_2009_5_a89,
     author = {Stefan Hollands},
     title = {Axiomatic {Quantum} {Field} {Theory} in {Terms} of {Operator} {Product} {Expansions:} {General} {Framework,} and {Perturbation} {Theory} via {Hochschild} {Cohomology}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2009},
     volume = {5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2009_5_a89/}
}