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Gardthausen, V.E., Griechische Palaeographie (Leipzig, 1879). Internet Archive: 12
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Kenyon, F.G., The Palaeography of Greek Papyri (Oxford, 1899) Internet Archive
Lindsay, W.M., Notae Latinae: An Account of Abbreviation in Latin MSS of the Early Minuscule Period (c. 700--850) (Cambridge, 1915) Internet Archive: 12
de Montfaucon, B., Palaeographia graeca (Parisiis, 1708). Google Books: 1
Thompson, E. M., Handbook of Greek and Latin Paleography³ (London, 1906) Internet Archive: 12
——— An Introduction to Greek and Latin Palaeography (Oxford, 1912) Internet Archive
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Wattenbach, W., Das Schriftwesen im Mittelalter (Leipzig, 1871). Internet Archive: 123
——— Das Schriftwesen im Mittelalter² (Leipzig, 1875). Internet Archive: 123
——— Das Schriftwesen im Mittelalter³ (Leipzig, 1896). Internet Archive: 123