Fromm, A.A.FrommTrondl, A.A.TrondlKübler, R.R.Kübler2022-03-082022-03-082014https://publica.fraunhofer.de/handle/publica/29956410.2314/GBV:880498536dePV-Modulresonant frequency of solar paneldegradationelastic modulEVAencasulation UV induced aging620report