e.g. Filippa Pettersson or Cancer Res. 75(6) , 1102-12, (2015) or 10.1002/anie.201600521
Helvetica chimica acta
Hetero??Diels??Alder and Cheletropic Additions of Sulfur Dioxide to 1, 2??Dimethylidenecycloalkanes. Determination of Thermochemical and Kinetics Parameters for …
[Le, Nguyet Anh; Jones, Maitland; Bickelhaupt, Friedrich; Wolf, Willem H. de Journal of the American Chemical Society, 1989 , vol. 111, # 22 p. 8491 - 8493]