TY  - RPRT
TI  - The bounce and its negative eigenvalue: A new approach.
AU  - CA Bonato
AU  - MT Thomaz
AU  - AP Malbouisson
PY  - 1990
DO  - 10.1103/physrevd.41.1939
UR  - https://pubmed.ncbi.nlm.nih.gov/10012567/
ID  - 10012567
ER  -