%0 Journal Article %T Opinions of Entrepreneurs and Managers on Management Improvement in Enterprises of Different Size Classes %A Jan Lichtarski %A Czes aw Zaj c %A Professor %A Professor %J Organization and Management %D 2010 %I %R 10.2478/v10166-010-0004-9 %U http://versita.metapress.com/content/16678981v7150135/?p=0dca124ec6574addab4d3a2797b63a38&pi=3