Romanska småkyrkor i östersjöländerna : med särskild hänsyn till svenska förhållanden
A Swedish-language study of small Romanesque churches around the Baltic, published in Stockholm in 1901 by Richard Steffen for architectural historians and students of medieval church building. The four pictures are line drawings and sketches of rural stone churches with towers, steep roofs, and small round-arched windows, which a designer could use for rustic medieval building forms and simple masonry silhouettes.
