Braun T, Schubert A, Sindelys Z. Nanoscience and nanotechnology on the balance. Scientometrics 1997; 38(2):321-325.
Kamigaito O. What can be improved by nanometer composites? Journal of Japan Society of Powder Metalurgy 1991; 38:315-321.
Iijima S. Helical microtubes of graphitic carbon. Nature 1991; 354(6348):56-58.