1. Analysis of carbonaceous materials in Southern California atmospheric aerosols;Appel;Environ. Sci. Technol.,1976
2. Monitoring of atmospheric aerosol parameters with the integrating nephelometer;Charlson;J. Air Fallut. Control Ass.,1969
3. H2SO4/(NH4)2SO4 background aerosol: optical detection in St. Louis region;Charlson;Atmospheric Environment,1974
4. Chamber studies of visibility-reducing aerosols;Elder;Atmospheric Environment,1974
5. Translation from the Spanish of the account by the pilot Ferrel of the voyage of Cabrillo along the west coast of North America in 1542;Ferrel,1542