Lindrop, Paul H (1992). "The Ninian Pipeline system in the UK North Sea - developments for the second generation of fields". Energy Exploration & Exploitation. 10 (4/5): 250. Bibcode:1992EExEx..10..246L. doi:10.1177/014459879201000405.
Lindrop, Paul H (1992). "The Ninian Pipeline system in the UK North Sea - developments for the second generation of fields". Energy Exploration & Exploitation. 10 (4/5): 250. Bibcode:1992EExEx..10..246L. doi:10.1177/014459879201000405.