EndNote X7 reference lsit problem

After writing my thesis I went through all of the references in the text to check if they match the reference list. There are few references in the list which don’t appear in the text and I’d like to remove tehm. If I go to “Edit Citations -> More” menu they are not there! It is possible taht at some point of writing I included the reference in the list only that’s why they’re not in hte text. How can I get rid of these unwanted references?

Thank you