1. Arvy, L.: Mise en évidence des fibres élastiques chez quelques Invertébrés. Bull. Soc. Zool. France 80, 103 (1955).
2. Ashhurst, D. E.: The fibrillar flight muscles of giant water-bugs: an electron microscope study. J. Cell Sci. 2, 435?444 (1967).
3. ?, and J. A. Chapman: The connective-tissue sheath of the nervous system of Locusta, migratoria: an electron microscope study. Quart. J. micr. Sci. 102, 463?467 (1961).
4. Baccetti, B.: Primi reperti sulla struttura submicroscopica dello stroma di sostegno di alcuni organi degli Insetti. Atti Accad. Sci. Torino 95, 343?350 (1961).
5. ?: Collagen of the earthworms. J. Cell Biol. 34, 885?891 (1967 a).