If you decide to write your notes by hand, just keep them in one place and sort them alphabetically in the usual way: “SurnameYear.” Then you can easily match them with the bibliographic details in your reference system. But whether you write them by hand or not, keep in mind that it is all about the essence, the understanding and preparation for the next step — the transferring of ideas into the context of your own lines of thoughts in the slip-box.
