Does love or differential reinforcement open doors?

Henry D. Schlinger (2007). Does love or differential reinforcement open doors? Journal of Applied Behavior Analysis, 40, 385.

No abstract; this is the first paragraph:

There is a story about Queen Victoria and Prince Albert, which, although charming, has not been verified as historical fact (Strachey, 1921). Whether true or not, the story illustrates the use of differential reinforcement.

DESCRIPTORS: differential reinforcement, Queen Victoria, Prince Albert