@article{701143,
     title = {On the existence problem in the algebraic approach to quantum field theory},
     booktitle = {Abstracta. 7th Winter School on Abstract Analysis},
     series = {GDML\_Books},
     publisher = {Czechoslovak Academy of Sciences},
     address = {Praha},
     year = {1979},
     pages = {28-32},
     url = {http://dml.mathdoc.fr/item/701143}
}

Hofmann, Gerald. On the existence problem in the algebraic approach to quantum field theory, dans Abstracta. 7th Winter School on Abstract Analysis, GDML_Books,  (1979), pp. 28-32. http://gdmltest.u-ga.fr/item/701143/