1. Abrecht J (1980) Stability relations in the system CaSiO3-CaMnSi2O6-CaFeSi2O6. Contrib Mineral Petrol 74:253?260
2. Abrecht J, Peters Tj (1975) Hydrothermal synthesis of pyroxenoids in the system MnSiO3-CaSiO3 at P f=2 kb. Contrib Mineral Petrol 50:241?246
3. Abrecht J, Peters Tj, Sommerauer J (1979) Manganiferous mineral assemblages of Ravinella di Sotto, Valle Strona (Italy). Mem Scienze Geol, vol XXXIII:215?221
4. Allen VT, Fahey JJ (1968) Rhodonite, johannsenite, and ferroan johannsenite at Vanadium, New Mexico. Am Mineral 53:883?890
5. Bank H, Berdesinksi W, Ottemann J, Schmetzer K (1974) Durchsichtiger rötlicher eisenreicher Rhodonit aus Australien. Z Dtsch Geol Ges 23:180?188