49 http://hdl.handle.net/10338.dmlcz/119694 2008 The Lindelöf property and pseudo-$\aleph_1$-compactness in spaces and topological groups http://hdl.handle.net/10338.dmlcz/119755 The Lindelöf property and pseudo-$\aleph_1$-compactness in spaces and topological groups Some results on $L\Sigma(\kappa)$-spaces http://hdl.handle.net/10338.dmlcz/119754 Some results on $L\Sigma(\kappa)$-spaces How sensitive is $C_p(X,Y)$ to changes in $X$ and/or $Y$? http://hdl.handle.net/10338.dmlcz/119753 How sensitive is $C_p(X,Y)$ to changes in $X$ and/or $Y$? Closed embeddings into complements of $\Sigma$-products http://hdl.handle.net/10338.dmlcz/119752 Closed embeddings into complements of $\Sigma$-products