Smith, Erik T.; S. C. Sheridan (2018). "The characteristics of extreme cold events and cold air outbreaks in the eastern United States". Int. J. Climatol. 38: e807 –e820. Bibcode:2018IJCli..38E.807S. doi:10.1002/joc.5408. S2CID133920737.
Smith, Erik T.; S. C. Sheridan (2018). "The characteristics of extreme cold events and cold air outbreaks in the eastern United States". Int. J. Climatol. 38: e807 –e820. Bibcode:2018IJCli..38E.807S. doi:10.1002/joc.5408. S2CID133920737.
Smith, Erik T.; S. C. Sheridan (2018). "The characteristics of extreme cold events and cold air outbreaks in the eastern United States". Int. J. Climatol. 38: e807 –e820. Bibcode:2018IJCli..38E.807S. doi:10.1002/joc.5408. S2CID133920737.