@article {1992,
	title = {Guibert de Tournai ({\textdagger} 1284): Sermon aux chanoines r{\'e}guliers: Considerata lilia agri quomodo crescunt (Math. VI, 28)},
	journal = {Revue Mabillon},
	volume = {64},
	year = {1992},
	pages = {103-115},
	author = {Long{\`e}re, Jean}
}
