Received for publication 19 Apr. 1985. We thank A. Caballero and M. Aguadé for critically reading the manuscript. We are very grateful to “Servei de Microscopia Electronica de la Universitat de Barcelona” for technical assistance, and especially to R. Bargalló and J. López. This work has been partially supported by the “CIRIT” from the “Generalitat de Catalunya”, Spain. The cost of publishing this paper was defrayed in part by the payment of page charges. Under postal regulations, this paper therefore must be hereby marked advertisement solely to indicate this fact.
|All Time||Past Year||Past 30 Days|
|Full Text Views||25||25||3|