We were rewarded in 1996, when we contacted Elizabeth Weatherhead of the Cooperative Institute for Research in Environmental Sciences at the University of Colorado at Boulder.

• 直到1996年，我们与美国科罗拉多大学波尔德分校环境科学合作研究所的韦瑟黑德（ElizabethWeatherhead）博士连络上，才终于找到。