From network to hierarchy : the evolution of the Estonian senior civil service development systemRandma-Liiv, Tiina; Uudelepp, Annika; Sarapuu, KülliInternational review of administrative sciences2015 / p. 373-391 https://doi.org/10.1177/0020852314566001 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS