alpha-Methylene butyrolactone from Erythronium americanum.

@article{Cavallito1946alphaMethyleneBF,
  title={alpha-Methylene butyrolactone from Erythronium americanum.},
  author={C J Cavallito and T H Haskell},
  journal={Journal of the American Chemical Society},
  year={1946},
  volume={68 11},
  pages={2332-4}
}