@book { EfficientMarketHypothesisinAfricasSubSaharanStockMarkets,
    title = "Efficient Market Hypothesis in Africa’s Sub-Saharan Stock Markets",
    author = "Sebastian {Groh}",
    year = "2009",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640438662",
    url = "https://www.hausarbeiten.de/document/136647"
}