@book{cab0b2c55e6f4d86bbebc7aeb4ef7360,
title = "The use of indicator plants to estimate air pollution by SO2 and HF",
keywords = "oogstschade, luchtverontreiniging, gezondheidsbescherming, a{\"e}rosolen, giftige gassen, fluorwaterstofzuur, zwaveldioxide, crop damage, air pollution, health protection, aerosols, toxic gases, hydrofluoric acid, sulfur dioxide",
author = "\{van Raay\}, A.",
note = "Overdr.: Proceedings congress on the influence of air pollution on plants and animals, 1st., Wageningen, 1969, (1960), 319-328",
year = "1969",
language = "English",
series = "Mededeling / Instituut voor plantenziektenkundig onderzoek Wageningen",
number = "no. 521",
}