2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/81741The momentum distributions of pions and $ρ$-mesons in the nucleon are extracted from experiment. Perspectives of the quark microscopic theory of mesonic cloud are outlined.4 pages, 5 figuresNuclear TheoryProbing of nucleon mesonic structure by means of quasi-elastic knock-out processes like $p+e\to e'+π+n$text