English
No, this is not necessary. The requirements of all relevant Open Source licenses are met if a copy of the license text is delivered to the customer together with the software. The own license terms for possible proprietary components do not have to contain the license texts again, but at the same time must not be in contradiction with them (see FAQ "What has to be noted in the case of license terms for own developments if distributed in combination with free software?" [1])
FAQ-Ordnung: