1. G G Raffelt,Stars as laboratories for fundamental physics (University of Chicago Press, 1996)
2. L L DeRaad, K A Milton and N D Hari-Dass,Phys. Rev. D14, 3326 (1976)
3. J C Olivo, J F Nieves and P B Pal,Phys. Rev. D40, 3679 (1989)
4. A N Ioannisian and G G Raffelt,Phys. Rev. D55, 7038 (1997)
5. S J Hardy and D B Melrose,Publ. Astron. Soc. Aus. 13, 144 (1996)