1919, Robert Ridgway, Herbert Friedmann, The Birds of North and Middle America, Part 8, Issue 1919, page 276,... some of the feathers (especially posterior scapulars) with the broad edgings more rufescent and passing into whitish terminally ;
2005, Terence Cosgrove, Colloid Science: Principles, methods and applications, page 119,In its simplest form this approach uses a lattice with a single chain terminally attached to the interface.