On Saturday 26th of June 2004, Zdravkovic sensei associated with Ilic sensei held a large international Jujutsu seminar for members of clubs of Bosko Vidovic sensei. These clubs are mainly located in district of Brcko, in Bosnia and Herzegovina, but some are also on territory of Croatia. Vidovic sensei is one of the first active jujutsu coaches on Balkan who has introduced his students to JJIF competition rules. Therefore, this was also an opportunity of exchanging sport experiences and inviting more friends for future large Jujutsu events in Balkan. (So far, Zdravkovic sensei has established a network of clubs and friends from Slovenia, Croatia, Bosnia and Herzegovina, Serbia and Montenegro, and Macedonia, who will all participate on future joint events) There were near 50 people on the mat, including 6 students from Shinbukan Dojo. After the official end of the seminar, All guests from Bosnia escorted with Zdravkovic and Ilic sensei have visited the well known tourist resort in Pozarevac area, the Silver lake ("Srebrno Jezero"). 

U subotu 26. juna 2004. godine, sensei Zdravkovic je, uz pomoc sensei Ilica, odrzao veci medjunarodni Jujutsu seminar za clanove klubova koje predvodi majstor Bosko Vidovic. Ovi su klubovi mahom iz Distrikta Brcko, u Bosni i Hercegovini, ali su neki i na teritoriji Hrvatske. Sensei Vidovic jedan je od prvih aktivnih jujutsu trenera na Balkanu koji je uveo svoje ucenike u takmicarska pravila JJIF. Stoga je ovo bila i prilika da se razmene sportska iskustva, kao i da se pozovu novi prijatelji na predstojeca veca jujutsu takmicenja na Balkanu. (Do sada, sensei Zdravkovic je uspostavio mrezu klubova i prijatelja iz Slovenije, Hrvatske, Bosne i Hercegovine, Srbije i Crne Gore, kao i iz Makedonije, koji su izrazili spremnost za ucesce na zajednickim skupovima). Seminaru je prisustvovalo oko 50 vezbaca na strunjacama, ukljucujuci i 6 ucenika iz Shinbukan Dojo-a. Posle zvanicnog zavrsetka seminara, svi gosti iz Bosne su u pratnji sensei Zdravkovica i Ilica posetili poznatu turisticku lokaciju u blizini Pozarevca, Srebrno jezero kod Velikog Gradista.