Hi,I'm a subscriber to the channel (youtube), congratulations on the excellent material. I am a former university professor teaching sports training and volleyball. Former fitness coach of national league teams. Today, I have a channel that talks about non-profit volleyball and would like permission to use parts of your videos in around 10 to 30 seconds. when using it I will quote the source, indicate the channel and put the link in the description. Thank you await return.
