Citation management tools allow a user to organize and retrieve information, such as citations for books, articles, and Web sites, by interfacing with library databases.
LIGHT: African violets are grown indoors. They like bright, but filtered, sunlight. Do not place in direct sun. They can also be grown under florescent lights. The lights are usually suspended 12 to 18 inches above the violet for 8 to 14 hours a day.
Violet light is refracted most by a prism and red light is refracted least. The colours of the spectrum are: although there is really no sharp break between one colour and the next. A pure spectrum can be produced by adding two lenses to focus each colour to a point on the screen.