Selected references: A building team library

 Grimm, Clayford T. and Chi-Piu Fok: "Brick Masonry Compressive Strength at First Crack,"Masonry International, The British Masonry Society, Stoke-on-Trent, England, UK, 1984, pp. 18-23.

 Sementsov, S. A., and V. A. A. Kameiko: "Designer's Manual: Masonry, Including Reinforced Masonry," Israel Program for Scientific Translations, NTIS, Springfield, Va., 1971.

 Stang, A. H.; D. E. Parsons and J. W. McBurney: "Compressive Strength of Clay Brick Walls,"Journal of Research, National Institute for Standards and Technology, Gaithersburg, Md., Vol. 3, 1929, p. 550.