摘要 : The "alternative derivation" proposed in the Letter referenced in the title (see ibid., vol.42, p.2224, 1994) is incorrect. The correct derivation gives a result that agrees with previous computations. Hence, the claims and conclu... 展开 The "alternative derivation" proposed in the Letter referenced in the title (see ibid., vol.42, p.2224, 1994) is incorrect. The correct derivation gives a result that agrees with previous computations. Hence, the claims and conclusions based on the apparent difference in the results are not valid. 收起