1. Semel, M., Donati, J.-F., Rees, D.E. A&A 278, 231 (2003)
2. Leone, F., Bruno, P., Calì, A., Cosentino, R., Gentile, G., Gratton, R. Scuderi, S. SPIE 4843, 465–475, 2003
3. Snik, F., Kochukhov, O., Piskunov, N.; Rodenhuis, M., Jeffers, S., Keller, C., Dolgopolov, A., Stempels, E., Makaganiuk, V., Valenti, J., Johns-Krull, C. ASPC 437, 237 (2011)
4. Bagnulo, S., Fossati, L., Kochukhov, O., Landstreet, J.D. A&A 559, 103 (2013)
5. NON-DETECTION OF MAGNETIC FIELDS IN THE CENTRAL STARS OF THE PLANETARY NEBULAE NGC 1360 AND LSS 1362