@article{TM_2011_272_a1,
     author = {Miguel Aguado and Manuel Asorey},
     title = {Phase transitions and theta vacuum energy},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {9--19},
     publisher = {mathdoc},
     volume = {272},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TM_2011_272_a1/}
}