@Article{ BAKKALI:448-459,

author = { IMAD BAKKALI } ,

title = { The evolution of competencies management according to ISO 14001: A comparative analysis between versions ISO 14001: 1996 and ISO 14001: 2015 },

journal = { African Scientific Journal },

year = { 2021 },

volume = { 10 },

pages = { 448-459 },

}