1. Ueber die glatte Muskulatur der menschlichen Lunge;Baltisberger;Ztschr. f. Anat. u. Entwickl,1921
2. The Musculature of the Finer Divisions of the Bronchial Tree and Its Relation to Certain Pathologic Conditions;Miller;Am. Rev. Tuberc.,1921
3. Functional Aspects of Bronchial Muscle and Elastic Tissue;Macklin;Arch. Surg.,1929
4. The Musculature of the Bronchi and Lungs;Macklin;Physiol. Rev.,1929
5. The Bronchial Tree—Its Study by Insufflation;Jackson;Tr. Am. Laryng. A.,1918