1. Construction Requirements for Cross-Country Pipelines;SAES-L-051
2. Über die Formänderung Dünnwandiger Rohre, Insbesondere Federnder Ausgleichrohre;Karman;Z. Ver. Dtsch. Ing.
3. Elastic Properties of Curved Tubes;Vigness;Trans. ASME
4. Properties of Thin Walled Curved Tubes of Short Bend Radius;Pardue;Trans. ASME