1. Mucous and salivary-gland tumours;Ahlbom, H.E.;Acta radiol. (Stockh.), Supplement,1935
2. Salivary gland tumours and their mucins;Azzopardi, J. G.; Smith, 0. D;J. Path. and Bact,1959
3. Basaloma or so-called cylindroma of the air passages;Beck, J.C.; Guttman, M.R.;Ann. Otol. (St. Louis),1936
4. Cylindromatous mucous-gland tumours of the trachea and bronchi: a report of three cases;Belsey, R.H.R.; Valentine, J.C.;J. Path. and Bact,1951
5. Cylindromas of the respiratory tract, the upper part of the digestive tract and adjoining organs;Berdal, P.; Mylius, E.;Acta oto-laryng. (Stockh.), Supplement,1954