Author :
Garcia, O. ; de Castro, Angel ; Zumel, P. ; Cobos, José A.
Abstract :
In the above-named paper, the incorrect subscript "vv" was inadvertently shown throughout the submitted article. The correct subscript "w" should have been displayed in the corresponding areas: twice in the left column of p. 2070, five times in the right column of p. 2070, eight times in the left column of p. 2071, once in the right column of p. 2071, 12 times in the left column of p. 2072, 13 times in the right column of p. 2072, five times in the left column of p. 2073, six times in the display equation at the bottom of p. 2073, ten times in the left column of p. 2074, five times in the left column of p. 2075, twice in the right column of p. 2075, ten times in the left column of p. 2076, three times in the right column of p. 2076, once in the left column of p. 2077, and seven times in the right column of p. 2077.