{
	"version": "1.0",
	"cache_age": 3600,
	"type":"rich",
	"title": "A statistical model of background air pollution frequency distributions",
	"url": "https://arl4.library.sk/arl-spu/sk/detail-spu_us_cat-0001107-A-statistical-model-of-background-air-pollution-frequency-distributions/"
}