Fries K., Fink-Straube C., Mennig M., Schmidt H. (2004) Photochromic Coatings. In: Aegerter M.A., Mennig M. (eds) Sol-Gel Technologies for Glass Producers and Users. Springer, Boston, MA. DOI https://doi.org/10.1007/978-0-387-88953-5_33; Publisher Name Springer, Boston, MA; Print ISBN 978-1-4419-5455-8; Online ISBN 978-0-387-88953-5
Welaka, FL. Welaka is located close to the center of Florida. Welaka is part of Putnam County. Welaka has 1.48 square miles of land area and 0.03 square miles of water area. As of 2010-2014, the total Welaka population is 752, which has grown 28.33% since 2000.
Palatka (pronounced puh-lat-kuh) is a city in Putnam County, Florida, United States. The population was 10,558 at the 2010 census. It is the county seat of Putnam County. Palatka is the principal city of the Palatka Micropolitan Statistical Area, which is home to 72,893 residents. The city is also home to St. Johns River State College, St. Johns River Water Management District Headquarters, and Ravine Gardens State Park.