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 Please read the article from the World Literature Today by Branko Mikasinovich, digitized by Google and listed in references. Another author (literary critic), Miloslav Sutic, who wrote about Stojanovic is listed in the bibliography on the official site of Umerto Eco. To make this clear, not the reference about Stojanovic but the article Sutic wrote about Umberto Eco. The point being made is that notable authors would not write about subjects or authors who did not prove, through their work, significance and notability.     

 In order to avoid further confusion and further errors you may make (before I make more comments), I would recommend that you use this format (which includes references) for your revision since I think, based on the protocol used with many other articles and authors, this is the right way to do it. Number of poems is not an important fact, especially for the opening paragraph and also the number you used, 125, is not correct and you did not answer how did you calculate this. If poetry collection is the right term why, then, poetry collections term is used in the majority of articles on this very Wikipedia? If familiarity with the subject is not important to you, then how do you think articles are written or edited since it is a conditio sine qua non.   

 :This is the way (see below) the first section should be, in my opinion, because the number of poems is not important for the opening paragraph and the sentence from the first section you move to the Style section is now redundant, although in the first paragraph it was not only appropriate but much better fitted for that section than your revised version. There was a mistake regarding Arbutina reference—it is Znak I njegova deca and not Sunce sebe gleda (this was fixed). The first sentence from the Style section was placed back since it is much more illustrative of the subject and is much more appropriate than the number of poems. Also, this sentence, as you placed it in the Style section sounds redundant there in comparison to the next sentence and starts this section with the word his instead of Stojanovic and was strangely placed as a paragraph: 

 Dejan Stojanović (, ) (born 11 March 1959) is a Serbian-American poet, writer, essayist, philosopher, businessman, and former journalist. His poetry is characterized by a recognizable system of thoughtMiloslav Šutić, Significant Achievements of the Short Poetic Form, 2001 (Književna reč, broj 515, jul 2001, Beograd; Odzivi, str. 67, Konras, biblioteka Groš, 2002, Beograd) and poetic devices, bordering on philosophy, and, overall, it has a highly reflective tone.Alek Vukadinović, Poetic Circles of Dejan Stojanović, Circling, Afterword, p. 69, 1993, Belgrade (Pesnički krugovi Dejana Stojanovića, Krugovanje, Pogovor, str. 69) 
 According to the critic Petar V. Arbutina, “Stojanović belongs to the small and autochthonous circle of poets who have been the main creative and artistic force of the Serbian poetry in the last several decades.""Petar V. Arbutina, The Sign and Its Children, 2000 (Znak i njegova deca, Prosveta, Beograd) 

 :This is the way (see below) the next section should be with references included, although this does not mean that some old information will not need to be placed back: 

 ;Early life  
 Dejan Stojanović was born on 11 March 1959 in Peć, Kosovo, formerly known as Yugoslavia. In 1972, he moved with his family to Sutomore, near Bar, Montenegro, where he completed his secondary education. He attended the University of Pristina at Kosovo. While he was predominantly interested in philosophy and the arts during his youth, he earned a degree in law.Krugovanje, Beleška o autoru, p. 83, Narodna knjiga, Alfa, Beograd, 2000   

 :This is the first paragraph of the next section (see below), with references included, except about a literary club, which information is impossible to obtain at the moment, but if it is so crucial, it is not that important and may be removed. 

 ; Writing background 
 In early 1978, he began to write poetry.Circling: 1978–1987, (Serbian: Krugovanje), Pub: Narodna knjiga, Alpha, Belgrade He hid his work for three to four years, after which he published his poems in literary magazines in the former Yugoslavia. Magazines in which his work was published include Oko (The Eye) in Zagreb, Croatia; Stremljenja (Trends) and Jedinstvo (Unity)Svetionik. Author: Dejan Stojanović. Edition/Format:  Poetry: Serbian. Publication: Jedinstvo, 5, 332, str. 11. ISSN: 0021-5775. OCLC Number: 440922251. Notes: Ćirilicom. Description: str. 11. in Priština, and Gradina in [[Niš