Finished core eBPF section

docs/bibliography/bibliography.bib

@@ -251,6 +251,26 @@
 	url={https://lwn.net/Articles/794934/},
 	date={2019-06-31},
 	author={Marta Rybczynska}
+},
+
+@manual{ebpf_maps_kernel,
+	title={eBPF maps},
+	url={https://www.kernel.org/doc/html/latest/bpf/maps.html}
+},
+
+@manual{ebpf_maps_rddocs,
+	title={eBPF maps},
+	url={https://prototype-kernel.readthedocs.io/en/latest/bpf/ebpf_maps.html}
+},
+
+@manual{bpf_syscall,
+	title={bpf(2)- Linux manual page},
+	url={https://man7.org/linux/man-pages/man2/bpf.2.html}
+},
+
+@manual{ebpf_helpers,
+	title={bpf-helpers(7)- Linux manual page},
+	url={https://man7.org/linux/man-pages/man7/bpf-helpers.7.html}
 }