Moser v. Frohnmayer is the citing reference. State v. Plowman is the cited reference.
Most legal writing includes one or more citations.
A citation is a reference to a legal authority such as a case, statute, or regulation. Pictured here is a page from the Pacific Reporter, Second Series . The highlighted citation tells you that the case called State of Oregon v. Plowman was published in volume 314 of Oregon Reports starting on page 157, and also in Volume 838 of the Pacific Reporter, Second Series starting on page 558. The case was decided in 1992.