Fungal parasites of dwarf mistletoes / Frank G. Hawksworth, Ed F. Wicker and Robert F. Scharpf.Frank Hawksworth1977EN
Des Cardinals und Bischofs Nicolaus von Cusa wichtigste Schriften in deutscher Uebersetzung von F. A. Scharpff.Nicholas, of Cusa, Cardinal1862DE
Resistance of Ponderosa Pine to Western Dwarf Mistletoe in Central Oregon / Robert F. Scharpf, Lewis F. Roth.Robert Scharpf1992EN
Stem infection by dwarf mistletoe in California firs / John R. Parmeter, Robert F. Scharpf.J. R. Parmeter1982EN
Determining the Age of Dwarfmistletoe Infections on Red Fir / Robert F. Scharpf and J. R. Parmeter, Jr.Robert Scharpf1966EN
Elytroderma disease in young Jeffrey pine, South Lake Tahoe, California / Robert F. Scharpf, Robert V. Bega.Robert Scharpf1988EN
Avoid planting Scotch pine neaw dwarf mistletoe-infected California pines / Robert F. Scharpf, Arthur H. McCain.Robert Scharpf1988EN