@article{ZNSL_2004_312_a11,
     author = {L. R. Klein},
     title = {Econometric modeling at mixed frequencies},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {130--137},
     publisher = {mathdoc},
     volume = {312},
     year = {2004},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2004_312_a11/}
}