References
- Bull , L.B. , Culvener , C.C.J. and Dick , A. 1968 . Pyrrolizidine Alkaloids , Amsterdam : North-Holland publishing Press .
- Robins , D.J. 1982 . Prog. Chem. Organ. Nat. Prod. , 41 : 115
- Mattocks , A.R. 1986 . Chemistry and Toxicology of Pyrrolizidine Alkaloids , London : Academic Press .
- Robins , D.J. 1984–1989 . Nat. Prod. Rep. , 1, 235; 2, 213; 3, 297; 4, 577; 6, 221
- Ravi , S. , Lakshmanan , A.J. and Herz , W. 1990 . Phytochemistry , 29 : 361
- 1959 . The Wealth of India – Raw Materials , Vol IIC , 421 New Delhi : CSIR .
- Ravi , S. and Lakshmanan , A.J. 2000 . Indian J. Chem. , 39B : 80
- Mattocks , A.R. 1967 . J. Chem. Soc (c) , : 329
- Clarita , F. , Asibal , F. , Glinski , J.A. , Gelbaum , L.T. and Zaikow , L.H. 1989 . J. Nat. Prod. , 52 : 109
- Urones , J.G. , Barcala , P.B. , Marcas , I.S. , Moro , R.F. , Esteban , M.L. and Rodriguez , A.F. 1988 . Phytochemistry , 27 : 1507