by Highfill G.A, Northcutt S.L, Ray F.K, Shearhart C.W, Barnes K.C
Published in Research report P (1993)

by Gardner, B.A, Dolezal, H.G, Shearhart, C.W, Ray, F.K, Highfill, G.A, Northcutt, S.L
Published in Research report P (1995)

by Northcutt, S.L. (Oklahoma State University), Dolezal, H.G, Highfill, G.A, Ray, F.K, Shearhart, C.W
Published in Research report P (USA) (01.09.1994)