1. 1) Tropical Cyclone Report Hurricane Sandy, National Hurricane Center in National Ocean and Atmosphere Administration, http://www.nhc.noaa.gov/data/tcr/AL182012_Sandy.pdf
2. 2) New York City Office of Emergency Management, http://www.nyc.gov/html/oem/downloads/pdf/hurricane_brochure_english.pdf
3. 3) The Port Authority of New York and New Jersey, http://www.panynj.gov/