Russian ⇄ English Italian

серьёзное исследование stresses
scient.	serious study (Ivan Pisarev); serious research (Ivan Pisarev); serious examination (Ivan Pisarev); seriously studied (Ivan Pisarev); close examination (Ivan Pisarev); extensive study (Ivan Pisarev); careful examination (Ivan Pisarev); thorough review (Ivan Pisarev); careful review (Ivan Pisarev); in-depth examination (Ivan Pisarev); thorough study (Ivan Pisarev); careful study (Ivan Pisarev); thorough examination (Ivan Pisarev); careful consideration (Ivan Pisarev); scrutinized analysis (Ivan Pisarev); closer examination (Ivan Pisarev); closer inspection (Ivan Pisarev); carefully study (Ivan Pisarev); close study (Ivan Pisarev)
серьёзные исследования
gen.	rigorous research (Nika Franchi)
Игорь Миг	authoritative studies

серьёзное исследование: 3 phrases in 3 subjects

General	1
Mathematics	1
Medical	1