Authors
Vita Šterna
Stende Research Centre, Institute of Agricultural Resources and Economics „Dižzemes”, Dižstende, Latvia
Sanita Zute
Stende Research Centre, Institute of Agricultural Resources and Economics „Dižzemes”, Dižstende, Latvia
Zaiga Vicupe
Stende Research Centre, Institute of Agricultural Resources and Economics „Dižzemes”, Dižstende, Latvia