@article{107125, author = {Josef Kalas}, title = {On a ``Liapunov like'' function for an equation $\dot z=f(t,z)$ with a complex-valued function $f$}, journal = {Archivum Mathematicum}, volume = {018}, year = {1982}, pages = {65-76}, zbl = {0498.34039}, mrnumber = {683347}, language = {en}, url = {http://dml.mathdoc.fr/item/107125} }
Kalas, Josef. On a “Liapunov like” function for an equation $\dot z=f(t,z)$ with a complex-valued function $f$. Archivum Mathematicum, Tome 018 (1982) pp. 65-76. http://gdmltest.u-ga.fr/item/107125/
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