Another "R Coronae Borealis Stars" paper by Nikos Drakos and
    Ross Moore. Translated by Simon Jeffery.
 

"R Coronae Borealis Stars - Sooty and Sweet"
    by Michael Poxon
 

Want to know about the Corona Borealis Constellation?
    Visit "Corona Borealis" by Marco Murara
 

AAVSO: R Coronae Borealis, Jan. 2000 Variable Star of the Month