The deadline for the second assignment is approaching. You have had some trouble finding good sources, that clearly explain the difficult concepts you are using. Shortly before the deadline, you found an online lecture on YouTube that contains a brilliant explanation of one of several central concepts in your project.
You transcribe a long passage, adjust it for spoken language and add the text to your project.
As you read through your text you suddenly remember your first assignment - and the student who told you that you might have plagiarized the book. He said your text was too close to the text in the book you used.
The question arises - how do you refer to the online lecture - and is it necessary at all? After all, you have not copied any text, but only written down parts of what you heard in the lecture.
How do you proceed?