1. Reed, R. J. & Danielsen E. F. 1959 Fronts in the vicinity of the tropopause.Arch. Meteor. Geophys. Bioklim. A11,1–17.
2. Hoskins B. J. 1973 The surface pressure distribution in a simple frontogenesis model.U.K. Universities Atmos. Modelling Group Rep.
3. Sanders F. 1955 Investigation of the structure and dynamics of an intense surface frontal zone. J. Meteor.,12,542–552.
4. Pedlosky J. 1964 The stability of currents in the atmosphere and ocean: Part I. J. Atmos. Sci.,21,201–219.
5. Eady E. T. 1949 Long waves and cyclone waves. Tellus,1,33–52.