Foreign entry modes of Colombian small and medium enterprisesMartinez, C.; Piedad, C.; Lumiste, RĂ¼nnoThe international journal of business and economics perspectives2010 / 1, p. 16-24 QZSI DC/DC converters in input-series output-parallel connection for distributed generation [Electronic resource]Martinez, C.; Jalakas, Tanel; Vinnikov, Dmitri; Lazaro, A.; Barrado, A.SPEEDAM 2012 : Sorrento (Italy) - June 20-22, 2012 : 21st edition of the International Symposium on Power Electronics, Electrical drives, Automation and Motion2012 / p. 952-957 : ill [CD-ROM]