Apart from the bibliography you included with your own work and that lists the research materials you used, a bibliography is also a list of writings with descriptive or critical notes relating to a particular subject. It can help you to narrow down the amount of material and gives you great overview over the most relevant writings. A great way to continue after having checked the encyclopedias. A search for bibliographies for Korean Studies within the catalogue can be done HERE.
The bibliographies in our catalogue are mostly referring to history, and are published before 2010. There are many online bibliographies available online, which are also listed here.

