id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
gc-547	Tenchov, Yanaki Georgiev	Vein reticulation in seed ferns of the Dobrudzha coalfield Bulgaria	2012	10	.pdf	application/pdf	5637	328	57	4 In the Polyantsi and Gurkovo formations, Paripteris pinnules with reticulate veining and Linopteris pinnules with imperfect reticulation have not been observed. DIMITROVA, T. (1993): Palynostratigraphy of the Irecek Formation (Upper Visean – Lower Namurian) from Dobrudzha Coal Basin, North-East Bulgaria.–	cache/gc-547.pdf	txt/gc-547.txt