Dwayne Barnett-Ritcey
Fred R. Sias, Jr., PhD
A. D. Sarkar
Loughborough University of Technology
Jerzy Lempicki
John Colclough
Zdzisław Samsonowicz
Erhard Herrmann
Unknown Author
Berliner (J.J.) and Staff, New York.
Conference on Shell Moulding in Steel Foundries York, Eng. 1968.
Zongrong Ying
S. S. Zhukovskiĭ
American Foundrymen's Society.
Stanisław Kobyliński
Lev Petržela
Simion Buzilă
Kosuke Nishino
Naoki Taguchi