Wheeler's dilemma
Publication information:
Archibald SB, Farrell BD. Wheeler’s dilemma. In: Krzeminska E, Krzeminski W, editors. 2nd Congress on Palaeoentomology, Fossil insects, 2003. Vols. 46. Cracow: Polish Academy of Sciences, Institute of Systematics and Evolution of Animals; 2003. pp. 17–23.