1. Why stitches skip and fabric puckers;Hazen;Threads,1990
2. Some factors affecting the performance of high speed sewing machines;Johnson;Clothing Res. Jnl,1973
3. Optimum seam quality with a new floating foot system;JSN Intl,1990
4. Untersuchung des Zusammenwirkens von Transporter/Nähgut/Nähfuss/Stichplatte bei Industrienäihmaschinen;Mende;Textiltechnik,1982
5. Electromagnetics;Kraus,1953