Author:

Jansa,L.F.;Aubry,M.P.;Gradstein,F.M.

Year:

1990

Title:

Comets and extinction; cause and effect? (In: Global catastrophes in earth history; An interdiciplinary conference on impacts, volcanism and mass mortality. V.L.Sharton et al, editors)

Reference:

Jansa,L.F. et al. (1990) Comets and extinction; cause and effect? (In: Global catastrophes in earth history; An interdiciplinary conference on impacts, volcanism and mass mortality. V.L.Sharton et al, editors) Geological Society of America, Special Paper # 247 P. 223- 232

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