|Žarko Luetić, Croatia|
One often feels a sense of "déjà vu" upon seeing some humorous drawings. Some cases are just coincidences but Australian cartoonist Louis Pol raises on his Facebook page some egregious cases of plagiarism.
|André François, 1990|
|Klaus Becher, Germany (15th Hurriyet International Cartoon Competition 1998)|
|Mihai Stanescu, Romania (3rd Prize, Montreal Salon of Cartoons 1981)|
|Jurg Spahr (Jüsp) (1925 - 2002), Switzerland, 1989|
|Yuji Nehagi, Japan (1992 International Cartoon Festival Knokke-Heist)|
|Augusto Cid, Portugal (Grand Prize, Porto 2008)|
|Michel Moro Gomez, Cuba (Nasreddin Hoca Cartoon Contest 2015)|
|Kazimierz Babkevich, Poland|
International Biennial Of Humour & Satire, Gabrovo 2005
|Xiao Chengsen, China, (International Cartoon Biennial , Jiaxing 2015)|
More examples of similarities here.